diff --git a/homeassistant/components/mqtt/alarm_control_panel.py b/homeassistant/components/mqtt/alarm_control_panel.py
index 21c2a64d1d4..63c4a79b96f 100644
--- a/homeassistant/components/mqtt/alarm_control_panel.py
+++ b/homeassistant/components/mqtt/alarm_control_panel.py
@@ -41,6 +41,7 @@ from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 from . import PLATFORMS, MqttCommandTemplate, MqttValueTemplate, subscription
 from .. import mqtt
 from .const import (
+    CONF_COMMAND_TEMPLATE,
     CONF_COMMAND_TOPIC,
     CONF_ENCODING,
     CONF_QOS,
@@ -63,7 +64,6 @@ CONF_PAYLOAD_ARM_NIGHT = "payload_arm_night"
 CONF_PAYLOAD_ARM_VACATION = "payload_arm_vacation"
 CONF_PAYLOAD_ARM_CUSTOM_BYPASS = "payload_arm_custom_bypass"
 CONF_PAYLOAD_TRIGGER = "payload_trigger"
-CONF_COMMAND_TEMPLATE = "command_template"
 
 MQTT_ALARM_ATTRIBUTES_BLOCKED = frozenset(
     {
diff --git a/homeassistant/components/mqtt/const.py b/homeassistant/components/mqtt/const.py
index 9c788490ea3..4ccd81904b1 100644
--- a/homeassistant/components/mqtt/const.py
+++ b/homeassistant/components/mqtt/const.py
@@ -12,6 +12,7 @@ ATTR_TOPIC = "topic"
 CONF_AVAILABILITY = "availability"
 CONF_BROKER = "broker"
 CONF_BIRTH_MESSAGE = "birth_message"
+CONF_COMMAND_TEMPLATE = "command_template"
 CONF_COMMAND_TOPIC = "command_topic"
 CONF_ENCODING = "encoding"
 CONF_QOS = ATTR_QOS
diff --git a/homeassistant/components/mqtt/fan.py b/homeassistant/components/mqtt/fan.py
index 95c3ae39d74..fb6d21c8538 100644
--- a/homeassistant/components/mqtt/fan.py
+++ b/homeassistant/components/mqtt/fan.py
@@ -43,6 +43,7 @@ from homeassistant.util.percentage import (
 from . import PLATFORMS, MqttCommandTemplate, MqttValueTemplate, subscription
 from .. import mqtt
 from .const import (
+    CONF_COMMAND_TEMPLATE,
     CONF_COMMAND_TOPIC,
     CONF_ENCODING,
     CONF_QOS,
@@ -54,7 +55,6 @@ from .debug_info import log_messages
 from .mixins import MQTT_ENTITY_COMMON_SCHEMA, MqttEntity, async_setup_entry_helper
 
 CONF_STATE_VALUE_TEMPLATE = "state_value_template"
-CONF_COMMAND_TEMPLATE = "command_template"
 CONF_PERCENTAGE_STATE_TOPIC = "percentage_state_topic"
 CONF_PERCENTAGE_COMMAND_TOPIC = "percentage_command_topic"
 CONF_PERCENTAGE_VALUE_TEMPLATE = "percentage_value_template"
diff --git a/homeassistant/components/mqtt/humidifier.py b/homeassistant/components/mqtt/humidifier.py
index 5cd774d6cc1..df1b7667ef7 100644
--- a/homeassistant/components/mqtt/humidifier.py
+++ b/homeassistant/components/mqtt/humidifier.py
@@ -33,6 +33,7 @@ from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 from . import PLATFORMS, MqttCommandTemplate, MqttValueTemplate, subscription
 from .. import mqtt
 from .const import (
+    CONF_COMMAND_TEMPLATE,
     CONF_COMMAND_TOPIC,
     CONF_ENCODING,
     CONF_QOS,
@@ -44,7 +45,6 @@ from .debug_info import log_messages
 from .mixins import MQTT_ENTITY_COMMON_SCHEMA, MqttEntity, async_setup_entry_helper
 
 CONF_AVAILABLE_MODES_LIST = "modes"
-CONF_COMMAND_TEMPLATE = "command_template"
 CONF_DEVICE_CLASS = "device_class"
 CONF_MODE_COMMAND_TEMPLATE = "mode_command_template"
 CONF_MODE_COMMAND_TOPIC = "mode_command_topic"
diff --git a/homeassistant/components/mqtt/number.py b/homeassistant/components/mqtt/number.py
index 9122fe5c5b2..0020a020411 100644
--- a/homeassistant/components/mqtt/number.py
+++ b/homeassistant/components/mqtt/number.py
@@ -30,6 +30,7 @@ from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 from . import PLATFORMS, MqttCommandTemplate, MqttValueTemplate, subscription
 from .. import mqtt
 from .const import (
+    CONF_COMMAND_TEMPLATE,
     CONF_COMMAND_TOPIC,
     CONF_ENCODING,
     CONF_QOS,
@@ -40,8 +41,6 @@ from .const import (
 from .debug_info import log_messages
 from .mixins import MQTT_ENTITY_COMMON_SCHEMA, MqttEntity, async_setup_entry_helper
 
-CONF_COMMAND_TEMPLATE = "command_template"
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_MIN = "min"
diff --git a/homeassistant/components/mqtt/select.py b/homeassistant/components/mqtt/select.py
index ce3d2f4d488..810c6126d52 100644
--- a/homeassistant/components/mqtt/select.py
+++ b/homeassistant/components/mqtt/select.py
@@ -20,6 +20,7 @@ from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 from . import PLATFORMS, MqttCommandTemplate, MqttValueTemplate, subscription
 from .. import mqtt
 from .const import (
+    CONF_COMMAND_TEMPLATE,
     CONF_COMMAND_TOPIC,
     CONF_ENCODING,
     CONF_QOS,
@@ -30,8 +31,6 @@ from .const import (
 from .debug_info import log_messages
 from .mixins import MQTT_ENTITY_COMMON_SCHEMA, MqttEntity, async_setup_entry_helper
 
-CONF_COMMAND_TEMPLATE = "command_template"
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_OPTIONS = "options"