diff --git a/homeassistant/components/rainbird/__init__.py b/homeassistant/components/rainbird/__init__.py
index da2a0e4b475..737b8a0341d 100644
--- a/homeassistant/components/rainbird/__init__.py
+++ b/homeassistant/components/rainbird/__init__.py
@@ -7,7 +7,7 @@ from typing import Any
 
 import aiohttp
 from pyrainbird.async_client import AsyncRainbirdClient, AsyncRainbirdController
-from pyrainbird.exceptions import RainbirdApiException
+from pyrainbird.exceptions import RainbirdApiException, RainbirdAuthException
 
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
@@ -18,7 +18,7 @@ from homeassistant.const import (
     Platform,
 )
 from homeassistant.core import HomeAssistant
-from homeassistant.exceptions import ConfigEntryNotReady
+from homeassistant.exceptions import ConfigEntryAuthFailed, ConfigEntryNotReady
 from homeassistant.helpers import device_registry as dr, entity_registry as er
 from homeassistant.helpers.device_registry import format_mac
 
@@ -91,6 +91,8 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
 
     try:
         model_info = await controller.get_model_and_version()
+    except RainbirdAuthException as err:
+        raise ConfigEntryAuthFailed from err
     except RainbirdApiException as err:
         raise ConfigEntryNotReady from err
 
diff --git a/homeassistant/components/rainbird/config_flow.py b/homeassistant/components/rainbird/config_flow.py
index abeb1b5da15..86a3c5d5d1c 100644
--- a/homeassistant/components/rainbird/config_flow.py
+++ b/homeassistant/components/rainbird/config_flow.py
@@ -3,15 +3,13 @@
 from __future__ import annotations
 
 import asyncio
+from collections.abc import Mapping
 import logging
 from typing import Any
 
-from pyrainbird.async_client import (
-    AsyncRainbirdClient,
-    AsyncRainbirdController,
-    RainbirdApiException,
-)
+from pyrainbird.async_client import AsyncRainbirdClient, AsyncRainbirdController
 from pyrainbird.data import WifiParams
+from pyrainbird.exceptions import RainbirdApiException, RainbirdAuthException
 import voluptuous as vol
 
 from homeassistant.config_entries import (
@@ -45,6 +43,13 @@ DATA_SCHEMA = vol.Schema(
         ),
     }
 )
+REAUTH_SCHEMA = vol.Schema(
+    {
+        vol.Required(CONF_PASSWORD): selector.TextSelector(
+            selector.TextSelectorConfig(type=selector.TextSelectorType.PASSWORD)
+        ),
+    }
+)
 
 
 class ConfigFlowError(Exception):
@@ -59,6 +64,8 @@ class ConfigFlowError(Exception):
 class RainbirdConfigFlowHandler(ConfigFlow, domain=DOMAIN):
     """Handle a config flow for Rain Bird."""
 
+    host: str
+
     @staticmethod
     @callback
     def async_get_options_flow(
@@ -67,6 +74,35 @@ class RainbirdConfigFlowHandler(ConfigFlow, domain=DOMAIN):
         """Define the config flow to handle options."""
         return RainBirdOptionsFlowHandler()
 
+    async def async_step_reauth(
+        self, entry_data: Mapping[str, Any]
+    ) -> ConfigFlowResult:
+        """Perform reauthentication upon an API authentication error."""
+        self.host = entry_data[CONF_HOST]
+        return await self.async_step_reauth_confirm()
+
+    async def async_step_reauth_confirm(
+        self, user_input: dict[str, Any] | None = None
+    ) -> ConfigFlowResult:
+        """Confirm reauthentication dialog."""
+        errors: dict[str, str] = {}
+        if user_input:
+            try:
+                await self._test_connection(self.host, user_input[CONF_PASSWORD])
+            except ConfigFlowError as err:
+                _LOGGER.error("Error during config flow: %s", err)
+                errors["base"] = err.error_code
+            else:
+                return self.async_update_reload_and_abort(
+                    self._get_reauth_entry(),
+                    data_updates={CONF_PASSWORD: user_input[CONF_PASSWORD]},
+                )
+        return self.async_show_form(
+            step_id="reauth_confirm",
+            data_schema=REAUTH_SCHEMA,
+            errors=errors,
+        )
+
     async def async_step_user(
         self, user_input: dict[str, Any] | None = None
     ) -> ConfigFlowResult:
@@ -123,6 +159,11 @@ class RainbirdConfigFlowHandler(ConfigFlow, domain=DOMAIN):
                 f"Timeout connecting to Rain Bird controller: {err!s}",
                 "timeout_connect",
             ) from err
+        except RainbirdAuthException as err:
+            raise ConfigFlowError(
+                f"Authentication error connecting from Rain Bird controller: {err!s}",
+                "invalid_auth",
+            ) from err
         except RainbirdApiException as err:
             raise ConfigFlowError(
                 f"Error connecting to Rain Bird controller: {err!s}",
diff --git a/homeassistant/components/rainbird/quality_scale.yaml b/homeassistant/components/rainbird/quality_scale.yaml
index 63ea38d47bd..e918bf845ba 100644
--- a/homeassistant/components/rainbird/quality_scale.yaml
+++ b/homeassistant/components/rainbird/quality_scale.yaml
@@ -45,7 +45,7 @@ rules:
   # Silver
   log-when-unavailable: todo
   config-entry-unloading: todo
-  reauthentication-flow: todo
+  reauthentication-flow: done
   action-exceptions: todo
   docs-installation-parameters: todo
   integration-owner: todo
diff --git a/homeassistant/components/rainbird/strings.json b/homeassistant/components/rainbird/strings.json
index 61498b36816..25d3a962b36 100644
--- a/homeassistant/components/rainbird/strings.json
+++ b/homeassistant/components/rainbird/strings.json
@@ -12,14 +12,26 @@
           "host": "The hostname or IP address of your Rain Bird device.",
           "password": "The password used to authenticate with the Rain Bird device."
         }
+      },
+      "reauth_confirm": {
+        "title": "[%key:common::config_flow::title::reauth%]",
+        "description": "The Rain Bird integration needs to re-authenticate with the device.",
+        "data": {
+          "password": "[%key:common::config_flow::data::password%]"
+        },
+        "data_description": {
+          "password": "The password to authenticate with your Rain Bird device."
+        }
       }
     },
     "abort": {
-      "already_configured": "[%key:common::config_flow::abort::already_configured_device%]"
+      "already_configured": "[%key:common::config_flow::abort::already_configured_device%]",
+      "reauth_successful": "[%key:common::config_flow::abort::reauth_successful%]"
     },
     "error": {
       "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
-      "timeout_connect": "[%key:common::config_flow::error::timeout_connect%]"
+      "timeout_connect": "[%key:common::config_flow::error::timeout_connect%]",
+      "invalid_auth": "[%key:common::config_flow::error::invalid_auth%]"
     }
   },
   "options": {
diff --git a/tests/components/rainbird/test_config_flow.py b/tests/components/rainbird/test_config_flow.py
index 87506ad656c..6e76943f202 100644
--- a/tests/components/rainbird/test_config_flow.py
+++ b/tests/components/rainbird/test_config_flow.py
@@ -56,7 +56,7 @@ async def mock_setup() -> AsyncGenerator[AsyncMock]:
         yield mock_setup
 
 
-async def complete_flow(hass: HomeAssistant) -> FlowResult:
+async def complete_flow(hass: HomeAssistant, password: str = PASSWORD) -> FlowResult:
     """Start the config flow and enter the host and password."""
     result = await hass.config_entries.flow.async_init(
         DOMAIN, context={"source": config_entries.SOURCE_USER}
@@ -268,6 +268,59 @@ async def test_controller_cannot_connect(
     assert not mock_setup.mock_calls
 
 
+async def test_controller_invalid_auth(
+    hass: HomeAssistant,
+    mock_setup: Mock,
+    responses: list[AiohttpClientMockResponse],
+    aioclient_mock: AiohttpClientMocker,
+) -> None:
+    """Test an invalid password."""
+
+    responses.clear()
+    responses.extend(
+        [
+            # Incorrect password response
+            AiohttpClientMockResponse("POST", URL, status=HTTPStatus.FORBIDDEN),
+            AiohttpClientMockResponse("POST", URL, status=HTTPStatus.FORBIDDEN),
+            # Second attempt with the correct password
+            mock_response(SERIAL_RESPONSE),
+            mock_json_response(WIFI_PARAMS_RESPONSE),
+        ]
+    )
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}
+    )
+    assert result.get("type") is FlowResultType.FORM
+    assert result.get("step_id") == "user"
+    assert not result.get("errors")
+    assert "flow_id" in result
+
+    # Simulate authentication error
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"],
+        {CONF_HOST: HOST, CONF_PASSWORD: "wrong-password"},
+    )
+    assert result.get("type") is FlowResultType.FORM
+    assert result.get("step_id") == "user"
+    assert result.get("errors") == {"base": "invalid_auth"}
+
+    assert not mock_setup.mock_calls
+
+    # Correct the form and enter the password again and setup completes
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"],
+        {CONF_HOST: HOST, CONF_PASSWORD: PASSWORD},
+    )
+    assert result.get("type") is FlowResultType.CREATE_ENTRY
+    assert result.get("title") == HOST
+    assert "result" in result
+    assert dict(result["result"].data) == CONFIG_ENTRY_DATA
+    assert result["result"].unique_id == MAC_ADDRESS_UNIQUE_ID
+
+    assert len(mock_setup.mock_calls) == 1
+
+
 async def test_controller_timeout(
     hass: HomeAssistant,
     mock_setup: Mock,
@@ -286,6 +339,67 @@ async def test_controller_timeout(
     assert not mock_setup.mock_calls
 
 
+@pytest.mark.parametrize(
+    ("responses", "config_entry_data"),
+    [
+        (
+            [
+                # First attempt simulate the wrong password
+                AiohttpClientMockResponse("POST", URL, status=HTTPStatus.FORBIDDEN),
+                AiohttpClientMockResponse("POST", URL, status=HTTPStatus.FORBIDDEN),
+                # Second attempt simulate the correct password
+                mock_response(SERIAL_RESPONSE),
+                mock_json_response(WIFI_PARAMS_RESPONSE),
+            ],
+            {
+                **CONFIG_ENTRY_DATA,
+                CONF_PASSWORD: "old-password",
+            },
+        ),
+    ],
+)
+async def test_reauth_flow(
+    hass: HomeAssistant,
+    mock_setup: Mock,
+    config_entry: MockConfigEntry,
+) -> None:
+    """Test the controller is setup correctly."""
+    assert config_entry.data.get(CONF_PASSWORD) == "old-password"
+    config_entry.async_start_reauth(hass)
+    await hass.async_block_till_done()
+
+    flows = hass.config_entries.flow.async_progress()
+    assert len(flows) == 1
+    result = flows[0]
+    assert result.get("step_id") == "reauth_confirm"
+    assert not result.get("errors")
+
+    # Simluate the wrong password
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"],
+        {CONF_PASSWORD: "incorrect_password"},
+    )
+    assert result.get("type") == FlowResultType.FORM
+    assert result.get("step_id") == "reauth_confirm"
+    assert result.get("errors") == {"base": "invalid_auth"}
+
+    # Enter the correct password and complete the flow
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"],
+        {CONF_PASSWORD: PASSWORD},
+    )
+    assert result.get("type") == FlowResultType.ABORT
+    assert result.get("reason") == "reauth_successful"
+
+    entries = hass.config_entries.async_entries(DOMAIN)
+    assert len(entries) == 1
+    entry = entries[0]
+    assert entry.unique_id == MAC_ADDRESS_UNIQUE_ID
+    assert entry.data.get(CONF_PASSWORD) == PASSWORD
+
+    assert len(mock_setup.mock_calls) == 1
+
+
 async def test_options_flow(hass: HomeAssistant, mock_setup: Mock) -> None:
     """Test config flow options."""
 
diff --git a/tests/components/rainbird/test_init.py b/tests/components/rainbird/test_init.py
index 5b2e2ea6d1b..01e0c4458e4 100644
--- a/tests/components/rainbird/test_init.py
+++ b/tests/components/rainbird/test_init.py
@@ -45,17 +45,19 @@ async def test_init_success(
 
 
 @pytest.mark.parametrize(
-    ("config_entry_data", "responses", "config_entry_state"),
+    ("config_entry_data", "responses", "config_entry_state", "config_flow_steps"),
     [
         (
             CONFIG_ENTRY_DATA,
             [mock_response_error(HTTPStatus.SERVICE_UNAVAILABLE)],
             ConfigEntryState.SETUP_RETRY,
+            [],
         ),
         (
             CONFIG_ENTRY_DATA,
             [mock_response_error(HTTPStatus.INTERNAL_SERVER_ERROR)],
             ConfigEntryState.SETUP_RETRY,
+            [],
         ),
         (
             CONFIG_ENTRY_DATA,
@@ -64,6 +66,7 @@ async def test_init_success(
                 mock_response_error(HTTPStatus.SERVICE_UNAVAILABLE),
             ],
             ConfigEntryState.SETUP_RETRY,
+            [],
         ),
         (
             CONFIG_ENTRY_DATA,
@@ -72,6 +75,13 @@ async def test_init_success(
                 mock_response_error(HTTPStatus.INTERNAL_SERVER_ERROR),
             ],
             ConfigEntryState.SETUP_RETRY,
+            [],
+        ),
+        (
+            CONFIG_ENTRY_DATA,
+            [mock_response_error(HTTPStatus.FORBIDDEN)],
+            ConfigEntryState.SETUP_ERROR,
+            ["reauth_confirm"],
         ),
     ],
     ids=[
@@ -79,17 +89,22 @@ async def test_init_success(
         "server-error",
         "coordinator-unavailable",
         "coordinator-server-error",
+        "forbidden",
     ],
 )
 async def test_communication_failure(
     hass: HomeAssistant,
     config_entry: MockConfigEntry,
     config_entry_state: list[ConfigEntryState],
+    config_flow_steps: list[str],
 ) -> None:
     """Test unable to talk to device on startup, which fails setup."""
     await hass.config_entries.async_setup(config_entry.entry_id)
     assert config_entry.state == config_entry_state
 
+    flows = hass.config_entries.flow.async_progress()
+    assert [flow["step_id"] for flow in flows] == config_flow_steps
+
 
 @pytest.mark.parametrize(
     ("config_entry_unique_id", "config_entry_data"),