diff --git a/.coveragerc b/.coveragerc
index 1f73828daa4..3daac135adb 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -667,6 +667,9 @@ omit =
     homeassistant/components/led_ble/util.py
     homeassistant/components/lg_netcast/media_player.py
     homeassistant/components/lg_soundbar/media_player.py
+    homeassistant/components/lidarr/__init__.py
+    homeassistant/components/lidarr/coordinator.py
+    homeassistant/components/lidarr/sensor.py
     homeassistant/components/life360/__init__.py
     homeassistant/components/life360/const.py
     homeassistant/components/life360/coordinator.py
diff --git a/CODEOWNERS b/CODEOWNERS
index c087599baa4..8024c1dad17 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -609,6 +609,8 @@ build.json @home-assistant/supervisor
 /homeassistant/components/led_ble/ @bdraco
 /tests/components/led_ble/ @bdraco
 /homeassistant/components/lg_netcast/ @Drafteed
+/homeassistant/components/lidarr/ @tkdrob
+/tests/components/lidarr/ @tkdrob
 /homeassistant/components/life360/ @pnbruckner
 /tests/components/life360/ @pnbruckner
 /homeassistant/components/lifx/ @bdraco @Djelibeybi
diff --git a/homeassistant/components/lidarr/__init__.py b/homeassistant/components/lidarr/__init__.py
new file mode 100644
index 00000000000..6410e520b42
--- /dev/null
+++ b/homeassistant/components/lidarr/__init__.py
@@ -0,0 +1,85 @@
+"""The Lidarr component."""
+from __future__ import annotations
+
+from aiopyarr.lidarr_client import LidarrClient
+from aiopyarr.models.host_configuration import PyArrHostConfiguration
+
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import CONF_API_KEY, CONF_URL, CONF_VERIFY_SSL, Platform
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.aiohttp_client import async_get_clientsession
+from homeassistant.helpers.device_registry import DeviceEntryType
+from homeassistant.helpers.entity import DeviceInfo, EntityDescription
+from homeassistant.helpers.update_coordinator import CoordinatorEntity
+
+from .const import DEFAULT_NAME, DOMAIN
+from .coordinator import (
+    DiskSpaceDataUpdateCoordinator,
+    LidarrDataUpdateCoordinator,
+    QueueDataUpdateCoordinator,
+    StatusDataUpdateCoordinator,
+    WantedDataUpdateCoordinator,
+)
+
+PLATFORMS = [Platform.SENSOR]
+
+
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+    """Set up Lidarr from a config entry."""
+    host_configuration = PyArrHostConfiguration(
+        api_token=entry.data[CONF_API_KEY],
+        verify_ssl=entry.data[CONF_VERIFY_SSL],
+        url=entry.data[CONF_URL],
+    )
+    lidarr = LidarrClient(
+        host_configuration=host_configuration,
+        session=async_get_clientsession(hass, host_configuration.verify_ssl),
+        request_timeout=60,
+    )
+    coordinators: dict[str, LidarrDataUpdateCoordinator] = {
+        "disk_space": DiskSpaceDataUpdateCoordinator(hass, host_configuration, lidarr),
+        "queue": QueueDataUpdateCoordinator(hass, host_configuration, lidarr),
+        "status": StatusDataUpdateCoordinator(hass, host_configuration, lidarr),
+        "wanted": WantedDataUpdateCoordinator(hass, host_configuration, lidarr),
+    }
+    # Temporary, until we add diagnostic entities
+    _version = None
+    for coordinator in coordinators.values():
+        await coordinator.async_config_entry_first_refresh()
+        if isinstance(coordinator, StatusDataUpdateCoordinator):
+            _version = coordinator.data
+        coordinator.system_version = _version
+    hass.data.setdefault(DOMAIN, {})[entry.entry_id] = coordinators
+    await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
+
+    return True
+
+
+async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+    """Unload a config entry."""
+    if unload_ok := await hass.config_entries.async_unload_platforms(entry, PLATFORMS):
+        hass.data[DOMAIN].pop(entry.entry_id)
+
+    return unload_ok
+
+
+class LidarrEntity(CoordinatorEntity[LidarrDataUpdateCoordinator]):
+    """Defines a base Lidarr entity."""
+
+    _attr_has_entity_name = True
+
+    def __init__(
+        self, coordinator: LidarrDataUpdateCoordinator, description: EntityDescription
+    ) -> None:
+        """Initialize the Lidarr entity."""
+        super().__init__(coordinator)
+        self.entity_description = description
+        self._attr_unique_id = f"{coordinator.config_entry.entry_id}_{description.key}"
+        self._attr_device_info = DeviceInfo(
+            configuration_url=coordinator.host_configuration.base_url,
+            entry_type=DeviceEntryType.SERVICE,
+            identifiers={(DOMAIN, coordinator.config_entry.entry_id)},
+            manufacturer=DEFAULT_NAME,
+            name=DEFAULT_NAME,
+            sw_version=coordinator.system_version,
+        )
diff --git a/homeassistant/components/lidarr/config_flow.py b/homeassistant/components/lidarr/config_flow.py
new file mode 100644
index 00000000000..1b7f2b23c11
--- /dev/null
+++ b/homeassistant/components/lidarr/config_flow.py
@@ -0,0 +1,111 @@
+"""Config flow for Lidarr."""
+from __future__ import annotations
+
+from collections.abc import Mapping
+from typing import Any
+
+from aiohttp import ClientConnectorError
+from aiopyarr import SystemStatus, exceptions
+from aiopyarr.lidarr_client import LidarrClient
+import voluptuous as vol
+
+from homeassistant.config_entries import ConfigEntry, ConfigFlow
+from homeassistant.const import CONF_API_KEY, CONF_URL, CONF_VERIFY_SSL
+from homeassistant.core import HomeAssistant
+from homeassistant.data_entry_flow import FlowResult
+from homeassistant.helpers.aiohttp_client import async_get_clientsession
+
+from .const import DEFAULT_NAME, DOMAIN
+
+
+class LidarrConfigFlow(ConfigFlow, domain=DOMAIN):
+    """Handle a config flow for Lidarr."""
+
+    VERSION = 1
+
+    def __init__(self) -> None:
+        """Initialize the flow."""
+        self.entry: ConfigEntry | None = None
+
+    async def async_step_reauth(self, user_input: Mapping[str, Any]) -> FlowResult:
+        """Handle configuration by re-auth."""
+        self.entry = self.hass.config_entries.async_get_entry(self.context["entry_id"])
+
+        return await self.async_step_reauth_confirm()
+
+    async def async_step_reauth_confirm(
+        self, user_input: dict[str, str] | None = None
+    ) -> FlowResult:
+        """Confirm reauth dialog."""
+        if user_input is not None:
+            return await self.async_step_user()
+
+        self._set_confirm_only()
+        return self.async_show_form(step_id="reauth_confirm")
+
+    async def async_step_user(
+        self, user_input: dict[str, Any] | None = None
+    ) -> FlowResult:
+        """Handle a flow initiated by the user."""
+        errors = {}
+
+        if user_input is None:
+            user_input = dict(self.entry.data) if self.entry else None
+
+        else:
+            try:
+                result = await validate_input(self.hass, user_input)
+                if isinstance(result, tuple):
+                    user_input[CONF_API_KEY] = result[1]
+                elif isinstance(result, str):
+                    errors = {"base": result}
+            except exceptions.ArrAuthenticationException:
+                errors = {"base": "invalid_auth"}
+            except (ClientConnectorError, exceptions.ArrConnectionException):
+                errors = {"base": "cannot_connect"}
+            except exceptions.ArrException:
+                errors = {"base": "unknown"}
+            if not errors:
+                if self.entry:
+                    self.hass.config_entries.async_update_entry(
+                        self.entry, data=user_input
+                    )
+                    await self.hass.config_entries.async_reload(self.entry.entry_id)
+
+                    return self.async_abort(reason="reauth_successful")
+
+                return self.async_create_entry(title=DEFAULT_NAME, data=user_input)
+
+        user_input = user_input or {}
+        return self.async_show_form(
+            step_id="user",
+            data_schema=vol.Schema(
+                {
+                    vol.Required(CONF_URL, default=user_input.get(CONF_URL, "")): str,
+                    vol.Optional(CONF_API_KEY): str,
+                    vol.Optional(
+                        CONF_VERIFY_SSL,
+                        default=user_input.get(CONF_VERIFY_SSL, False),
+                    ): bool,
+                }
+            ),
+            errors=errors,
+        )
+
+
+async def validate_input(
+    hass: HomeAssistant, data: dict[str, Any]
+) -> tuple[str, str, str] | str | SystemStatus:
+    """Validate the user input allows us to connect.
+
+    Data has the keys from DATA_SCHEMA with values provided by the user.
+    """
+    lidarr = LidarrClient(
+        api_token=data.get(CONF_API_KEY, ""),
+        url=data[CONF_URL],
+        session=async_get_clientsession(hass),
+        verify_ssl=data[CONF_VERIFY_SSL],
+    )
+    if CONF_API_KEY not in data:
+        return await lidarr.async_try_zeroconf()
+    return await lidarr.async_get_system_status()
diff --git a/homeassistant/components/lidarr/const.py b/homeassistant/components/lidarr/const.py
new file mode 100644
index 00000000000..08e284b9b31
--- /dev/null
+++ b/homeassistant/components/lidarr/const.py
@@ -0,0 +1,38 @@
+"""Constants for Lidarr."""
+import logging
+from typing import Final
+
+from homeassistant.const import (
+    DATA_BYTES,
+    DATA_EXABYTES,
+    DATA_GIGABYTES,
+    DATA_KILOBYTES,
+    DATA_MEGABYTES,
+    DATA_PETABYTES,
+    DATA_TERABYTES,
+    DATA_YOTTABYTES,
+    DATA_ZETTABYTES,
+)
+
+BYTE_SIZES = [
+    DATA_BYTES,
+    DATA_KILOBYTES,
+    DATA_MEGABYTES,
+    DATA_GIGABYTES,
+    DATA_TERABYTES,
+    DATA_PETABYTES,
+    DATA_EXABYTES,
+    DATA_ZETTABYTES,
+    DATA_YOTTABYTES,
+]
+
+# Defaults
+DEFAULT_DAYS = "1"
+DEFAULT_HOST = "localhost"
+DEFAULT_NAME = "Lidarr"
+DEFAULT_UNIT = DATA_GIGABYTES
+DEFAULT_MAX_RECORDS = 20
+
+DOMAIN: Final = "lidarr"
+
+LOGGER = logging.getLogger(__package__)
diff --git a/homeassistant/components/lidarr/coordinator.py b/homeassistant/components/lidarr/coordinator.py
new file mode 100644
index 00000000000..be789c6a32a
--- /dev/null
+++ b/homeassistant/components/lidarr/coordinator.py
@@ -0,0 +1,94 @@
+"""Data update coordinator for the Lidarr integration."""
+from __future__ import annotations
+
+from abc import abstractmethod
+from datetime import timedelta
+from typing import Generic, TypeVar, cast
+
+from aiopyarr import LidarrAlbum, LidarrQueue, LidarrRootFolder, exceptions
+from aiopyarr.lidarr_client import LidarrClient
+from aiopyarr.models.host_configuration import PyArrHostConfiguration
+
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+from homeassistant.exceptions import ConfigEntryAuthFailed
+from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
+
+from .const import DEFAULT_MAX_RECORDS, DOMAIN, LOGGER
+
+T = TypeVar("T", list[LidarrRootFolder], LidarrQueue, str, LidarrAlbum)
+
+
+class LidarrDataUpdateCoordinator(DataUpdateCoordinator, Generic[T]):
+    """Data update coordinator for the Lidarr integration."""
+
+    config_entry: ConfigEntry
+
+    def __init__(
+        self,
+        hass: HomeAssistant,
+        host_configuration: PyArrHostConfiguration,
+        api_client: LidarrClient,
+    ) -> None:
+        """Initialize the coordinator."""
+        super().__init__(
+            hass=hass,
+            logger=LOGGER,
+            name=DOMAIN,
+            update_interval=timedelta(seconds=30),
+        )
+        self.api_client = api_client
+        self.host_configuration = host_configuration
+        self.system_version: str | None = None
+
+    async def _async_update_data(self) -> T:
+        """Get the latest data from Lidarr."""
+        try:
+            return await self._fetch_data()
+
+        except exceptions.ArrConnectionException as ex:
+            raise UpdateFailed(ex) from ex
+        except exceptions.ArrAuthenticationException as ex:
+            raise ConfigEntryAuthFailed(
+                "API Key is no longer valid. Please reauthenticate"
+            ) from ex
+
+    @abstractmethod
+    async def _fetch_data(self) -> T:
+        """Fetch the actual data."""
+        raise NotImplementedError
+
+
+class DiskSpaceDataUpdateCoordinator(LidarrDataUpdateCoordinator):
+    """Disk space update coordinator for Lidarr."""
+
+    async def _fetch_data(self) -> list[LidarrRootFolder]:
+        """Fetch the data."""
+        return cast(list, await self.api_client.async_get_root_folders())
+
+
+class QueueDataUpdateCoordinator(LidarrDataUpdateCoordinator):
+    """Queue update coordinator."""
+
+    async def _fetch_data(self) -> LidarrQueue:
+        """Fetch the album count in queue."""
+        return await self.api_client.async_get_queue(page_size=DEFAULT_MAX_RECORDS)
+
+
+class StatusDataUpdateCoordinator(LidarrDataUpdateCoordinator):
+    """Status update coordinator for Lidarr."""
+
+    async def _fetch_data(self) -> str:
+        """Fetch the data."""
+        return (await self.api_client.async_get_system_status()).version
+
+
+class WantedDataUpdateCoordinator(LidarrDataUpdateCoordinator):
+    """Wanted update coordinator."""
+
+    async def _fetch_data(self) -> LidarrAlbum:
+        """Fetch the wanted data."""
+        return cast(
+            LidarrAlbum,
+            await self.api_client.async_get_wanted(page_size=DEFAULT_MAX_RECORDS),
+        )
diff --git a/homeassistant/components/lidarr/manifest.json b/homeassistant/components/lidarr/manifest.json
new file mode 100644
index 00000000000..6f7ad875a46
--- /dev/null
+++ b/homeassistant/components/lidarr/manifest.json
@@ -0,0 +1,10 @@
+{
+  "domain": "lidarr",
+  "name": "Lidarr",
+  "documentation": "https://www.home-assistant.io/integrations/lidarr",
+  "requirements": ["aiopyarr==22.7.0"],
+  "codeowners": ["@tkdrob"],
+  "config_flow": true,
+  "iot_class": "local_polling",
+  "loggers": ["aiopyarr"]
+}
diff --git a/homeassistant/components/lidarr/sensor.py b/homeassistant/components/lidarr/sensor.py
new file mode 100644
index 00000000000..8529d9a6469
--- /dev/null
+++ b/homeassistant/components/lidarr/sensor.py
@@ -0,0 +1,162 @@
+"""Support for Lidarr."""
+from __future__ import annotations
+
+from collections.abc import Callable
+from copy import deepcopy
+from dataclasses import dataclass
+from datetime import datetime
+from typing import Generic
+
+from aiopyarr import LidarrQueueItem, LidarrRootFolder
+
+from homeassistant.components.sensor import (
+    SensorEntity,
+    SensorEntityDescription,
+    SensorStateClass,
+)
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import DATA_GIGABYTES
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.typing import StateType
+
+from . import LidarrEntity
+from .const import BYTE_SIZES, DOMAIN
+from .coordinator import LidarrDataUpdateCoordinator, T
+
+
+def get_space(data: list[LidarrRootFolder], name: str) -> str:
+    """Get space."""
+    space = []
+    for mount in data:
+        if name in mount.path:
+            mount.freeSpace = mount.freeSpace if mount.accessible else 0
+            space.append(mount.freeSpace / 1024 ** BYTE_SIZES.index(DATA_GIGABYTES))
+    return f"{space[0]:.2f}"
+
+
+def get_modified_description(
+    description: LidarrSensorEntityDescription, mount: LidarrRootFolder
+) -> tuple[LidarrSensorEntityDescription, str]:
+    """Return modified description and folder name."""
+    desc = deepcopy(description)
+    name = mount.path.rsplit("/")[-1].rsplit("\\")[-1]
+    desc.key = f"{description.key}_{name}"
+    desc.name = f"{description.name} {name}".capitalize()
+    return desc, name
+
+
+@dataclass
+class LidarrSensorEntityDescriptionMixIn(Generic[T]):
+    """Mixin for required keys."""
+
+    value_fn: Callable[[T, str], str]
+
+
+@dataclass
+class LidarrSensorEntityDescription(
+    SensorEntityDescription, LidarrSensorEntityDescriptionMixIn, Generic[T]
+):
+    """Class to describe a Lidarr sensor."""
+
+    attributes_fn: Callable[
+        [T], dict[str, StateType | datetime] | None
+    ] = lambda _: None
+    description_fn: Callable[
+        [LidarrSensorEntityDescription, LidarrRootFolder],
+        tuple[LidarrSensorEntityDescription, str] | None,
+    ] = lambda _, __: None
+
+
+SENSOR_TYPES: dict[str, LidarrSensorEntityDescription] = {
+    "disk_space": LidarrSensorEntityDescription(
+        key="disk_space",
+        name="Disk space",
+        native_unit_of_measurement=DATA_GIGABYTES,
+        icon="mdi:harddisk",
+        value_fn=get_space,
+        state_class=SensorStateClass.TOTAL,
+        description_fn=get_modified_description,
+    ),
+    "queue": LidarrSensorEntityDescription(
+        key="queue",
+        name="Queue",
+        native_unit_of_measurement="Albums",
+        icon="mdi:download",
+        value_fn=lambda data, _: data.totalRecords,
+        state_class=SensorStateClass.TOTAL,
+        attributes_fn=lambda data: {i.title: queue_str(i) for i in data.records},
+    ),
+    "wanted": LidarrSensorEntityDescription(
+        key="wanted",
+        name="Wanted",
+        native_unit_of_measurement="Albums",
+        icon="mdi:music",
+        value_fn=lambda data, _: data.totalRecords,
+        state_class=SensorStateClass.TOTAL,
+        entity_registry_enabled_default=False,
+        attributes_fn=lambda data: {
+            album.title: album.artist.artistName for album in data.records
+        },
+    ),
+}
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    entry: ConfigEntry,
+    async_add_entities: AddEntitiesCallback,
+) -> None:
+    """Set up Lidarr sensors based on a config entry."""
+    coordinators: dict[str, LidarrDataUpdateCoordinator] = hass.data[DOMAIN][
+        entry.entry_id
+    ]
+    entities = []
+    for coordinator_type, description in SENSOR_TYPES.items():
+        coordinator = coordinators[coordinator_type]
+        if coordinator_type != "disk_space":
+            entities.append(LidarrSensor(coordinator, description))
+        else:
+            entities.extend(
+                LidarrSensor(coordinator, *get_modified_description(description, mount))
+                for mount in coordinator.data
+                if description.description_fn
+            )
+    async_add_entities(entities)
+
+
+class LidarrSensor(LidarrEntity, SensorEntity):
+    """Implementation of the Lidarr sensor."""
+
+    entity_description: LidarrSensorEntityDescription
+
+    def __init__(
+        self,
+        coordinator: LidarrDataUpdateCoordinator,
+        description: LidarrSensorEntityDescription,
+        folder_name: str = "",
+    ) -> None:
+        """Create Lidarr entity."""
+        super().__init__(coordinator, description)
+        self.folder_name = folder_name
+
+    @property
+    def extra_state_attributes(self) -> dict[str, StateType | datetime] | None:
+        """Return the state attributes of the sensor."""
+        return self.entity_description.attributes_fn(self.coordinator.data)
+
+    @property
+    def native_value(self) -> StateType:
+        """Return the state of the sensor."""
+        return self.entity_description.value_fn(self.coordinator.data, self.folder_name)
+
+
+def queue_str(item: LidarrQueueItem) -> str:
+    """Return string description of queue item."""
+    if (
+        item.sizeleft > 0
+        and item.timeleft == "00:00:00"
+        or not hasattr(item, "trackedDownloadState")
+    ):
+        return "stopped"
+    return item.trackedDownloadState
diff --git a/homeassistant/components/lidarr/strings.json b/homeassistant/components/lidarr/strings.json
new file mode 100644
index 00000000000..662d930cbef
--- /dev/null
+++ b/homeassistant/components/lidarr/strings.json
@@ -0,0 +1,42 @@
+{
+  "config": {
+    "step": {
+      "user": {
+        "description": "API key can be retrieved automatically if login credentials were not set in application.\nYour API key can be found in Settings > General in the Lidarr Web UI.",
+        "data": {
+          "api_key": "[%key:common::config_flow::data::api_key%]",
+          "url": "[%key:common::config_flow::data::url%]",
+          "verify_ssl": "[%key:common::config_flow::data::verify_ssl%]"
+        }
+      },
+      "reauth_confirm": {
+        "title": "[%key:common::config_flow::title::reauth%]",
+        "description": "The Lidarr integration needs to be manually re-authenticated with the Lidarr API",
+        "data": {
+          "api_key": "[%key:common::config_flow::data::api_key%]"
+        }
+      }
+    },
+    "error": {
+      "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
+      "invalid_auth": "[%key:common::config_flow::error::invalid_auth%]",
+      "zeroconf_failed": "API key not found. Please enter it manually",
+      "wrong_app": "Incorrect application reached. Please try again",
+      "unknown": "[%key:common::config_flow::error::unknown%]"
+    },
+    "abort": {
+      "already_configured": "[%key:common::config_flow::abort::already_configured_service%]",
+      "reauth_successful": "[%key:common::config_flow::abort::reauth_successful%]"
+    }
+  },
+  "options": {
+    "step": {
+      "init": {
+        "data": {
+          "upcoming_days": "Number of upcoming days to display on calendar",
+          "max_records": "Number of maximum records to display on wanted and queue"
+        }
+      }
+    }
+  }
+}
diff --git a/homeassistant/components/lidarr/translations/en.json b/homeassistant/components/lidarr/translations/en.json
new file mode 100644
index 00000000000..03c7435eb36
--- /dev/null
+++ b/homeassistant/components/lidarr/translations/en.json
@@ -0,0 +1,42 @@
+{
+    "config": {
+        "abort": {
+            "already_configured": "Service is already configured",
+            "reauth_successful": "Re-authentication was successful"
+        },
+        "error": {
+            "cannot_connect": "Failed to connect",
+            "invalid_auth": "Invalid authentication",
+            "zeroconf_failed": "API key not found. Please enter it manually",
+            "wrong_app": "Incorrect application reached. Please try again",
+            "unknown": "Unexpected error"
+        },
+        "step": {
+            "reauth_confirm": {
+                "description": "The Lidarr integration needs to be manually re-authenticated with the Lidarr API",
+                "title": "Reauthenticate Integration",
+                "data": {
+                    "api_key": "API Key"
+                }
+            },
+            "user": {
+                "description": "API key can be retrieved automatically if login credentials were not set in application.\nYour API key can be found in Settings > General in the Lidarr Web UI.",
+                "data": {
+                    "api_key": "API Key",
+                    "url": "URL",
+                    "verify_ssl": "Verify SSL certificate"
+                }
+            }
+        }
+    },
+    "options": {
+        "step": {
+            "init": {
+                "data": {
+                    "upcoming_days": "Number of upcoming days to display on calendar",
+                    "max_records": "Number of maximum records to display on wanted and queue"
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/homeassistant/generated/config_flows.py b/homeassistant/generated/config_flows.py
index 208a7e02efc..038596d3e23 100644
--- a/homeassistant/generated/config_flows.py
+++ b/homeassistant/generated/config_flows.py
@@ -204,6 +204,7 @@ FLOWS = {
         "laundrify",
         "led_ble",
         "lg_soundbar",
+        "lidarr",
         "life360",
         "lifx",
         "litejet",
diff --git a/requirements_all.txt b/requirements_all.txt
index 6a12a38fdc5..74f93f267c8 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -231,6 +231,7 @@ aiopvapi==2.0.1
 # homeassistant.components.pvpc_hourly_pricing
 aiopvpc==3.0.0
 
+# homeassistant.components.lidarr
 # homeassistant.components.sonarr
 aiopyarr==22.7.0
 
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index d60c9146079..36822d4cbae 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -206,6 +206,7 @@ aiopvapi==2.0.1
 # homeassistant.components.pvpc_hourly_pricing
 aiopvpc==3.0.0
 
+# homeassistant.components.lidarr
 # homeassistant.components.sonarr
 aiopyarr==22.7.0
 
diff --git a/tests/components/lidarr/__init__.py b/tests/components/lidarr/__init__.py
new file mode 100644
index 00000000000..8c1220e4c6c
--- /dev/null
+++ b/tests/components/lidarr/__init__.py
@@ -0,0 +1,53 @@
+"""Tests for the Lidarr component."""
+from aiopyarr.lidarr_client import LidarrClient
+
+from homeassistant.components.lidarr.const import DOMAIN
+from homeassistant.const import (
+    CONF_API_KEY,
+    CONF_URL,
+    CONF_VERIFY_SSL,
+    CONTENT_TYPE_JSON,
+)
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.aiohttp_client import async_get_clientsession
+
+from tests.common import MockConfigEntry, load_fixture
+from tests.test_util.aiohttp import AiohttpClientMocker
+
+BASE_PATH = ""
+API_KEY = "1234567890abcdef1234567890abcdef"
+URL = "http://127.0.0.1:8686"
+client = LidarrClient(session=async_get_clientsession, api_token=API_KEY, url=URL)
+API_URL = f"{URL}/api/{client._host.api_ver}"
+
+MOCK_REAUTH_INPUT = {CONF_API_KEY: "new_key"}
+
+MOCK_USER_INPUT = {
+    CONF_URL: URL,
+    CONF_VERIFY_SSL: False,
+}
+
+CONF_DATA = MOCK_USER_INPUT | {CONF_API_KEY: API_KEY}
+
+
+def mock_connection(
+    aioclient_mock: AiohttpClientMocker,
+    url: str = API_URL,
+) -> None:
+    """Mock lidarr connection."""
+    aioclient_mock.get(
+        f"{url}/system/status",
+        text=load_fixture("lidarr/system-status.json"),
+        headers={"Content-Type": CONTENT_TYPE_JSON},
+    )
+
+
+def create_entry(hass: HomeAssistant) -> MockConfigEntry:
+    """Create Efergy entry in Home Assistant."""
+    entry = MockConfigEntry(
+        domain=DOMAIN,
+        data=CONF_DATA,
+    )
+
+    entry.add_to_hass(hass)
+    return entry
diff --git a/tests/components/lidarr/fixtures/system-status.json b/tests/components/lidarr/fixtures/system-status.json
new file mode 100644
index 00000000000..6baa9428ff6
--- /dev/null
+++ b/tests/components/lidarr/fixtures/system-status.json
@@ -0,0 +1,29 @@
+{
+  "version": "10.0.0.34882",
+  "buildTime": "2020-09-01T23:23:23.9621974Z",
+  "isDebug": true,
+  "isProduction": false,
+  "isAdmin": false,
+  "isUserInteractive": true,
+  "startupPath": "C:\\ProgramData\\Radarr",
+  "appData": "C:\\ProgramData\\Radarr",
+  "osName": "Windows",
+  "osVersion": "10.0.18363.0",
+  "isNetCore": true,
+  "isMono": false,
+  "isMonoRuntime": false,
+  "isLinux": false,
+  "isOsx": false,
+  "isWindows": true,
+  "isDocker": false,
+  "mode": "console",
+  "branch": "nightly",
+  "authentication": "none",
+  "sqliteVersion": "3.32.1",
+  "migrationVersion": 180,
+  "urlBase": "",
+  "runtimeVersion": "3.1.10",
+  "runtimeName": "netCore",
+  "startTime": "2020-09-01T23:50:20.2415965Z",
+  "packageUpdateMechanism": "builtIn"
+}
diff --git a/tests/components/lidarr/test_config_flow.py b/tests/components/lidarr/test_config_flow.py
new file mode 100644
index 00000000000..0ec48439012
--- /dev/null
+++ b/tests/components/lidarr/test_config_flow.py
@@ -0,0 +1,142 @@
+"""Test Lidarr config flow."""
+from unittest.mock import patch
+
+from aiopyarr import ArrAuthenticationException, ArrConnectionException, ArrException
+
+from homeassistant import data_entry_flow
+from homeassistant.components.lidarr.const import DEFAULT_NAME, DOMAIN
+from homeassistant.config_entries import SOURCE_REAUTH, SOURCE_USER
+from homeassistant.const import CONF_API_KEY, CONF_SOURCE
+from homeassistant.core import HomeAssistant
+
+from . import API_KEY, CONF_DATA, MOCK_USER_INPUT, create_entry, mock_connection
+
+from tests.test_util.aiohttp import AiohttpClientMocker
+
+
+def _patch_client():
+    return patch(
+        "homeassistant.components.lidarr.config_flow.LidarrClient.async_get_system_status"
+    )
+
+
+async def test_flow_user_form(
+    hass: HomeAssistant, aioclient_mock: AiohttpClientMocker
+) -> None:
+    """Test that the user set up form is served."""
+    mock_connection(aioclient_mock)
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        context={CONF_SOURCE: SOURCE_USER},
+    )
+    with patch(
+        "homeassistant.components.lidarr.config_flow.LidarrClient.async_try_zeroconf",
+        return_value=("/api/v3", API_KEY, ""),
+    ):
+        result = await hass.config_entries.flow.async_configure(
+            result["flow_id"],
+            user_input=MOCK_USER_INPUT,
+        )
+    assert result["type"] == data_entry_flow.RESULT_TYPE_CREATE_ENTRY
+    assert result["title"] == DEFAULT_NAME
+    assert result["data"] == CONF_DATA
+
+
+async def test_flow_user_invalid_auth(hass: HomeAssistant) -> None:
+    """Test invalid authentication."""
+    with _patch_client() as client:
+        client.side_effect = ArrAuthenticationException
+        result = await hass.config_entries.flow.async_init(
+            DOMAIN,
+            context={CONF_SOURCE: SOURCE_USER},
+        )
+        result = await hass.config_entries.flow.async_configure(
+            result["flow_id"],
+            user_input=CONF_DATA,
+        )
+    assert result["type"] == data_entry_flow.RESULT_TYPE_FORM
+    assert result["step_id"] == "user"
+    assert result["errors"]["base"] == "invalid_auth"
+
+
+async def test_flow_user_cannot_connect(hass: HomeAssistant) -> None:
+    """Test connection error."""
+    with _patch_client() as client:
+        client.side_effect = ArrConnectionException
+        result = await hass.config_entries.flow.async_init(
+            DOMAIN,
+            context={CONF_SOURCE: SOURCE_USER},
+        )
+        result = await hass.config_entries.flow.async_configure(
+            result["flow_id"],
+            user_input=CONF_DATA,
+        )
+    assert result["type"] == data_entry_flow.RESULT_TYPE_FORM
+    assert result["step_id"] == "user"
+    assert result["errors"]["base"] == "cannot_connect"
+
+
+async def test_flow_user_unknown_error(hass: HomeAssistant) -> None:
+    """Test unknown error."""
+    with _patch_client() as client:
+        client.side_effect = ArrException
+        result = await hass.config_entries.flow.async_init(
+            DOMAIN,
+            context={CONF_SOURCE: SOURCE_USER},
+        )
+        result = await hass.config_entries.flow.async_configure(
+            result["flow_id"],
+            user_input=CONF_DATA,
+        )
+    assert result["type"] == data_entry_flow.RESULT_TYPE_FORM
+    assert result["step_id"] == "user"
+    assert result["errors"]["base"] == "unknown"
+
+
+async def test_flow_user_failed_zeroconf(hass: HomeAssistant) -> None:
+    """Test zero configuration failed."""
+    with _patch_client() as client:
+        client.return_value = "zeroconf_failed"
+        result = await hass.config_entries.flow.async_init(
+            DOMAIN,
+            context={CONF_SOURCE: SOURCE_USER},
+        )
+        result = await hass.config_entries.flow.async_configure(
+            result["flow_id"],
+            user_input=CONF_DATA,
+        )
+    assert result["type"] == data_entry_flow.RESULT_TYPE_FORM
+    assert result["step_id"] == "user"
+    assert result["errors"]["base"] == "zeroconf_failed"
+
+
+async def test_flow_reauth(
+    hass: HomeAssistant, aioclient_mock: AiohttpClientMocker
+) -> None:
+    """Test reauth."""
+    entry = create_entry(hass)
+    mock_connection(aioclient_mock)
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        context={
+            CONF_SOURCE: SOURCE_REAUTH,
+            "entry_id": entry.entry_id,
+            "unique_id": entry.unique_id,
+        },
+        data=CONF_DATA,
+    )
+    assert result["type"] == data_entry_flow.RESULT_TYPE_FORM
+    assert result["step_id"] == "reauth_confirm"
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"],
+        user_input={},
+    )
+    assert result["type"] == data_entry_flow.RESULT_TYPE_FORM
+    assert result["step_id"] == "user"
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"],
+        user_input={CONF_API_KEY: "abc123"},
+    )
+    assert result["type"] == data_entry_flow.RESULT_TYPE_ABORT
+    assert result["reason"] == "reauth_successful"
+    assert entry.data[CONF_API_KEY] == "abc123"