diff --git a/homeassistant/components/mqtt/__init__.py b/homeassistant/components/mqtt/__init__.py
index c22029f59f8..52204b31dcf 100644
--- a/homeassistant/components/mqtt/__init__.py
+++ b/homeassistant/components/mqtt/__init__.py
@@ -201,6 +201,7 @@ PLATFORM_CONFIG_SCHEMA_BASE = vol.Schema(
         vol.Optional(Platform.LIGHT.value): cv.ensure_list,
         vol.Optional(Platform.LOCK.value): cv.ensure_list,
         vol.Optional(Platform.SCENE.value): cv.ensure_list,
+        vol.Optional(Platform.SELECT.value): cv.ensure_list,
         vol.Optional(Platform.SIREN.value): cv.ensure_list,
         vol.Optional(Platform.SWITCH.value): cv.ensure_list,
         vol.Optional(Platform.VACUUM.value): cv.ensure_list,
diff --git a/homeassistant/components/mqtt/select.py b/homeassistant/components/mqtt/select.py
index f873a32a5de..0765eb7f176 100644
--- a/homeassistant/components/mqtt/select.py
+++ b/homeassistant/components/mqtt/select.py
@@ -1,6 +1,7 @@
 """Configure select in a device through MQTT topic."""
 from __future__ import annotations
 
+import asyncio
 import functools
 import logging
 
@@ -30,8 +31,10 @@ from .debug_info import log_messages
 from .mixins import (
     MQTT_ENTITY_COMMON_SCHEMA,
     MqttEntity,
+    async_get_platform_config_from_yaml,
     async_setup_entry_helper,
     async_setup_platform_helper,
+    warn_for_legacy_schema,
 )
 
 _LOGGER = logging.getLogger(__name__)
@@ -48,7 +51,7 @@ MQTT_SELECT_ATTRIBUTES_BLOCKED = frozenset(
 )
 
 
-_PLATFORM_SCHEMA_BASE = mqtt.MQTT_RW_PLATFORM_SCHEMA.extend(
+PLATFORM_SCHEMA_MODERN = mqtt.MQTT_RW_SCHEMA.extend(
     {
         vol.Optional(CONF_COMMAND_TEMPLATE): cv.template,
         vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
@@ -58,9 +61,13 @@ _PLATFORM_SCHEMA_BASE = mqtt.MQTT_RW_PLATFORM_SCHEMA.extend(
     },
 ).extend(MQTT_ENTITY_COMMON_SCHEMA.schema)
 
-PLATFORM_SCHEMA = vol.All(_PLATFORM_SCHEMA_BASE)
+# Configuring MQTT Select under the select platform key is deprecated in HA Core 2022.6
+PLATFORM_SCHEMA = vol.All(
+    cv.PLATFORM_SCHEMA.extend(PLATFORM_SCHEMA_MODERN.schema),
+    warn_for_legacy_schema(select.DOMAIN),
+)
 
-DISCOVERY_SCHEMA = vol.All(_PLATFORM_SCHEMA_BASE.extend({}, extra=vol.REMOVE_EXTRA))
+DISCOVERY_SCHEMA = vol.All(PLATFORM_SCHEMA_MODERN.extend({}, extra=vol.REMOVE_EXTRA))
 
 
 async def async_setup_platform(
@@ -69,7 +76,8 @@ async def async_setup_platform(
     async_add_entities: AddEntitiesCallback,
     discovery_info: DiscoveryInfoType | None = None,
 ) -> None:
-    """Set up MQTT select through configuration.yaml."""
+    """Set up MQTT select configured under the select platform key (deprecated)."""
+    # Deprecated in HA Core 2022.6
     await async_setup_platform_helper(
         hass, select.DOMAIN, config, async_add_entities, _async_setup_entity
     )
@@ -80,7 +88,17 @@ async def async_setup_entry(
     config_entry: ConfigEntry,
     async_add_entities: AddEntitiesCallback,
 ) -> None:
-    """Set up MQTT select dynamically through MQTT discovery."""
+    """Set up MQTT select through configuration.yaml and dynamically through MQTT discovery."""
+    # load and initialize platform config from configuration.yaml
+    await asyncio.gather(
+        *(
+            _async_setup_entity(hass, async_add_entities, config, config_entry)
+            for config in await async_get_platform_config_from_yaml(
+                hass, select.DOMAIN, PLATFORM_SCHEMA_MODERN
+            )
+        )
+    )
+    # setup for discovery
     setup = functools.partial(
         _async_setup_entity, hass, async_add_entities, config_entry=config_entry
     )
diff --git a/tests/components/mqtt/test_select.py b/tests/components/mqtt/test_select.py
index 069c0dfe4c9..cf5abf55854 100644
--- a/tests/components/mqtt/test_select.py
+++ b/tests/components/mqtt/test_select.py
@@ -41,6 +41,7 @@ from .test_common import (
     help_test_setting_attribute_via_mqtt_json_message,
     help_test_setting_attribute_with_template,
     help_test_setting_blocked_attribute_via_mqtt_json_message,
+    help_test_setup_manual_entity_from_yaml,
     help_test_unique_id,
     help_test_update_with_json_attrs_bad_JSON,
     help_test_update_with_json_attrs_not_dict,
@@ -610,3 +611,15 @@ async def test_encoding_subscribable_topics(
         attribute,
         attribute_value,
     )
+
+
+async def test_setup_manual_entity_from_yaml(hass, caplog, tmp_path):
+    """Test setup manual configured MQTT entity."""
+    platform = select.DOMAIN
+    config = copy.deepcopy(DEFAULT_CONFIG[platform])
+    config["name"] = "test"
+    del config["platform"]
+    await help_test_setup_manual_entity_from_yaml(
+        hass, caplog, tmp_path, platform, config
+    )
+    assert hass.states.get(f"{platform}.test") is not None