diff --git a/homeassistant/components/arcam_fmj/device_trigger.py b/homeassistant/components/arcam_fmj/device_trigger.py
index 549b4cf4f82..40feb63f9f3 100644
--- a/homeassistant/components/arcam_fmj/device_trigger.py
+++ b/homeassistant/components/arcam_fmj/device_trigger.py
@@ -59,11 +59,16 @@ async def async_attach_trigger(
     config = TRIGGER_SCHEMA(config)
 
     if config[CONF_TYPE] == "turn_on":
+        entity_id = config[CONF_ENTITY_ID]
 
         @callback
         def _handle_event(event: Event):
-            if event.data[ATTR_ENTITY_ID] == config[CONF_ENTITY_ID]:
-                hass.async_run_job(action({"trigger": config}, context=event.context))
+            if event.data[ATTR_ENTITY_ID] == entity_id:
+                hass.async_run_job(
+                    action,
+                    {"trigger": {**config, "description": f"{DOMAIN} - {entity_id}"}},
+                    event.context,
+                )
 
         return hass.bus.async_listen(EVENT_TURN_ON, _handle_event)
 
diff --git a/homeassistant/components/automation/__init__.py b/homeassistant/components/automation/__init__.py
index 970653cd4df..5d4c4c43b06 100644
--- a/homeassistant/components/automation/__init__.py
+++ b/homeassistant/components/automation/__init__.py
@@ -81,6 +81,7 @@ EVENT_AUTOMATION_RELOADED = "automation_reloaded"
 EVENT_AUTOMATION_TRIGGERED = "automation_triggered"
 
 ATTR_LAST_TRIGGERED = "last_triggered"
+ATTR_SOURCE = "source"
 ATTR_VARIABLES = "variables"
 SERVICE_TRIGGER = "trigger"
 
@@ -396,10 +397,14 @@ class AutomationEntity(ToggleEntity, RestoreEntity):
         self.async_set_context(trigger_context)
         self._last_triggered = utcnow()
         self.async_write_ha_state()
+        event_data = {
+            ATTR_NAME: self._name,
+            ATTR_ENTITY_ID: self.entity_id,
+        }
+        if "trigger" in variables and "description" in variables["trigger"]:
+            event_data[ATTR_SOURCE] = variables["trigger"]["description"]
         self.hass.bus.async_fire(
-            EVENT_AUTOMATION_TRIGGERED,
-            {ATTR_NAME: self._name, ATTR_ENTITY_ID: self.entity_id},
-            context=trigger_context,
+            EVENT_AUTOMATION_TRIGGERED, event_data, context=trigger_context
         )
 
         self._logger.info("Executing %s", self._name)
diff --git a/homeassistant/components/automation/logbook.py b/homeassistant/components/automation/logbook.py
index 2e3ad2475fc..cc44296eaa6 100644
--- a/homeassistant/components/automation/logbook.py
+++ b/homeassistant/components/automation/logbook.py
@@ -2,7 +2,7 @@
 from homeassistant.const import ATTR_ENTITY_ID, ATTR_NAME
 from homeassistant.core import callback
 
-from . import DOMAIN, EVENT_AUTOMATION_TRIGGERED
+from . import ATTR_SOURCE, DOMAIN, EVENT_AUTOMATION_TRIGGERED
 
 
 @callback
@@ -12,9 +12,13 @@ def async_describe_events(hass, async_describe_event):  # type: ignore
     @callback
     def async_describe_logbook_event(event):  # type: ignore
         """Describe a logbook event."""
+        message = "has been triggered"
+        if ATTR_SOURCE in event.data:
+            message = f"{message} by {event.data[ATTR_SOURCE]}"
         return {
             "name": event.data.get(ATTR_NAME),
-            "message": "has been triggered",
+            "message": message,
+            "source": event.data.get(ATTR_SOURCE),
             "entity_id": event.data.get(ATTR_ENTITY_ID),
         }
 
diff --git a/homeassistant/components/geo_location/trigger.py b/homeassistant/components/geo_location/trigger.py
index 92094a751a0..dc8879b51e5 100644
--- a/homeassistant/components/geo_location/trigger.py
+++ b/homeassistant/components/geo_location/trigger.py
@@ -67,20 +67,20 @@ async def async_attach_trigger(hass, config, action, automation_info):
             and not to_match
         ):
             hass.async_run_job(
-                action(
-                    {
-                        "trigger": {
-                            "platform": "geo_location",
-                            "source": source,
-                            "entity_id": event.data.get("entity_id"),
-                            "from_state": from_state,
-                            "to_state": to_state,
-                            "zone": zone_state,
-                            "event": trigger_event,
-                        }
-                    },
-                    context=event.context,
-                )
+                action,
+                {
+                    "trigger": {
+                        "platform": "geo_location",
+                        "source": source,
+                        "entity_id": event.data.get("entity_id"),
+                        "from_state": from_state,
+                        "to_state": to_state,
+                        "zone": zone_state,
+                        "event": trigger_event,
+                        "description": f"geo_location - {source}",
+                    }
+                },
+                event.context,
             )
 
     return hass.bus.async_listen(EVENT_STATE_CHANGED, state_change_listener)
diff --git a/homeassistant/components/homeassistant/triggers/event.py b/homeassistant/components/homeassistant/triggers/event.py
index 2c247280e06..8fa9207c3b0 100644
--- a/homeassistant/components/homeassistant/triggers/event.py
+++ b/homeassistant/components/homeassistant/triggers/event.py
@@ -48,7 +48,13 @@ async def async_attach_trigger(
 
         hass.async_run_job(
             action,
-            {"trigger": {"platform": platform_type, "event": event}},
+            {
+                "trigger": {
+                    "platform": platform_type,
+                    "event": event,
+                    "description": f"event '{event.event_type}'",
+                }
+            },
             event.context,
         )
 
diff --git a/homeassistant/components/homeassistant/triggers/homeassistant.py b/homeassistant/components/homeassistant/triggers/homeassistant.py
index 6ccb54d034e..baca145e19c 100644
--- a/homeassistant/components/homeassistant/triggers/homeassistant.py
+++ b/homeassistant/components/homeassistant/triggers/homeassistant.py
@@ -31,7 +31,13 @@ async def async_attach_trigger(hass, config, action, automation_info):
             """Execute when Home Assistant is shutting down."""
             hass.async_run_job(
                 action,
-                {"trigger": {"platform": "homeassistant", "event": event}},
+                {
+                    "trigger": {
+                        "platform": "homeassistant",
+                        "event": event,
+                        "description": "Home Assistant stopping",
+                    }
+                },
                 event.context,
             )
 
@@ -41,7 +47,14 @@ async def async_attach_trigger(hass, config, action, automation_info):
     # Check state because a config reload shouldn't trigger it.
     if automation_info["home_assistant_start"]:
         hass.async_run_job(
-            action({"trigger": {"platform": "homeassistant", "event": event}})
+            action,
+            {
+                "trigger": {
+                    "platform": "homeassistant",
+                    "event": event,
+                    "description": "Home Assistant starting",
+                }
+            },
         )
 
     return lambda: None
diff --git a/homeassistant/components/homeassistant/triggers/numeric_state.py b/homeassistant/components/homeassistant/triggers/numeric_state.py
index a1678e0a24c..b5a21aa8404 100644
--- a/homeassistant/components/homeassistant/triggers/numeric_state.py
+++ b/homeassistant/components/homeassistant/triggers/numeric_state.py
@@ -117,6 +117,7 @@ async def async_attach_trigger(
                         "from_state": from_s,
                         "to_state": to_s,
                         "for": time_delta if not time_delta else period[entity],
+                        "description": f"numeric state of {entity}",
                     }
                 },
                 to_s.context,
diff --git a/homeassistant/components/homeassistant/triggers/state.py b/homeassistant/components/homeassistant/triggers/state.py
index d51e63964e9..c580b8daf49 100644
--- a/homeassistant/components/homeassistant/triggers/state.py
+++ b/homeassistant/components/homeassistant/triggers/state.py
@@ -103,6 +103,7 @@ async def async_attach_trigger(
                         "to_state": to_s,
                         "for": time_delta if not time_delta else period[entity],
                         "attribute": attribute,
+                        "description": f"state of {entity}",
                     }
                 },
                 event.context,
diff --git a/homeassistant/components/homeassistant/triggers/time.py b/homeassistant/components/homeassistant/triggers/time.py
index 01eb1a9b85f..a152b1e8571 100644
--- a/homeassistant/components/homeassistant/triggers/time.py
+++ b/homeassistant/components/homeassistant/triggers/time.py
@@ -1,5 +1,6 @@
 """Offer time listening automation rules."""
 from datetime import datetime
+from functools import partial
 import logging
 
 import voluptuous as vol
@@ -38,9 +39,12 @@ async def async_attach_trigger(hass, config, action, automation_info):
     removes = []
 
     @callback
-    def time_automation_listener(now):
+    def time_automation_listener(description, now):
         """Listen for time changes and calls action."""
-        hass.async_run_job(action, {"trigger": {"platform": "time", "now": now}})
+        hass.async_run_job(
+            action,
+            {"trigger": {"platform": "time", "now": now, "description": description}},
+        )
 
     @callback
     def update_entity_trigger_event(event):
@@ -81,13 +85,15 @@ async def async_attach_trigger(hass, config, action, automation_info):
                 # Only set up listener if time is now or in the future.
                 if trigger_dt >= dt_util.now():
                     remove = async_track_point_in_time(
-                        hass, time_automation_listener, trigger_dt
+                        hass,
+                        partial(time_automation_listener, f"time set in {entity_id}"),
+                        trigger_dt,
                     )
             elif has_time:
                 # Else if it has time, then track time change.
                 remove = async_track_time_change(
                     hass,
-                    time_automation_listener,
+                    partial(time_automation_listener, f"time set in {entity_id}"),
                     hour=hour,
                     minute=minute,
                     second=second,
@@ -108,7 +114,7 @@ async def async_attach_trigger(hass, config, action, automation_info):
             removes.append(
                 async_track_time_change(
                     hass,
-                    time_automation_listener,
+                    partial(time_automation_listener, "time"),
                     hour=at_time.hour,
                     minute=at_time.minute,
                     second=at_time.second,
diff --git a/homeassistant/components/homeassistant/triggers/time_pattern.py b/homeassistant/components/homeassistant/triggers/time_pattern.py
index 41294268ae8..adacc939870 100644
--- a/homeassistant/components/homeassistant/triggers/time_pattern.py
+++ b/homeassistant/components/homeassistant/triggers/time_pattern.py
@@ -75,7 +75,14 @@ async def async_attach_trigger(hass, config, action, automation_info):
     def time_automation_listener(now):
         """Listen for time changes and calls action."""
         hass.async_run_job(
-            action, {"trigger": {"platform": "time_pattern", "now": now}}
+            action,
+            {
+                "trigger": {
+                    "platform": "time_pattern",
+                    "now": now,
+                    "description": "time pattern",
+                }
+            },
         )
 
     return async_track_time_change(
diff --git a/homeassistant/components/kodi/device_trigger.py b/homeassistant/components/kodi/device_trigger.py
index a5c93d08f72..85065a8bfe3 100644
--- a/homeassistant/components/kodi/device_trigger.py
+++ b/homeassistant/components/kodi/device_trigger.py
@@ -66,7 +66,11 @@ def _attach_trigger(
     @callback
     def _handle_event(event: Event):
         if event.data[ATTR_ENTITY_ID] == config[CONF_ENTITY_ID]:
-            hass.async_run_job(action({"trigger": config}, context=event.context))
+            hass.async_run_job(
+                action,
+                {"trigger": {**config, "description": event_type}},
+                event.context,
+            )
 
     return hass.bus.async_listen(event_type, _handle_event)
 
diff --git a/homeassistant/components/litejet/trigger.py b/homeassistant/components/litejet/trigger.py
index 5924cf3b809..d8b8ede8339 100644
--- a/homeassistant/components/litejet/trigger.py
+++ b/homeassistant/components/litejet/trigger.py
@@ -50,6 +50,7 @@ async def async_attach_trigger(hass, config, action, automation_info):
                     CONF_NUMBER: number,
                     CONF_HELD_MORE_THAN: held_more_than,
                     CONF_HELD_LESS_THAN: held_less_than,
+                    "description": f"litejet switch #{number}",
                 }
             },
         )
diff --git a/homeassistant/components/mqtt/trigger.py b/homeassistant/components/mqtt/trigger.py
index 8bb8ad46041..1ba7905120f 100644
--- a/homeassistant/components/mqtt/trigger.py
+++ b/homeassistant/components/mqtt/trigger.py
@@ -45,6 +45,7 @@ async def async_attach_trigger(hass, config, action, automation_info):
                 "topic": mqttmsg.topic,
                 "payload": mqttmsg.payload,
                 "qos": mqttmsg.qos,
+                "description": f"mqtt topic {mqttmsg.topic}",
             }
 
             try:
diff --git a/homeassistant/components/sun/trigger.py b/homeassistant/components/sun/trigger.py
index c416742f397..c21726cf0ae 100644
--- a/homeassistant/components/sun/trigger.py
+++ b/homeassistant/components/sun/trigger.py
@@ -31,12 +31,23 @@ async def async_attach_trigger(hass, config, action, automation_info):
     """Listen for events based on configuration."""
     event = config.get(CONF_EVENT)
     offset = config.get(CONF_OFFSET)
+    description = event
+    if offset:
+        description = f"{description} with offset"
 
     @callback
     def call_action():
         """Call action with right context."""
         hass.async_run_job(
-            action, {"trigger": {"platform": "sun", "event": event, "offset": offset}}
+            action,
+            {
+                "trigger": {
+                    "platform": "sun",
+                    "event": event,
+                    "offset": offset,
+                    "description": description,
+                }
+            },
         )
 
     if event == SUN_EVENT_SUNRISE:
diff --git a/homeassistant/components/template/trigger.py b/homeassistant/components/template/trigger.py
index b6e6c974807..980faf4d0a8 100644
--- a/homeassistant/components/template/trigger.py
+++ b/homeassistant/components/template/trigger.py
@@ -62,6 +62,7 @@ async def async_attach_trigger(
                         "from_state": from_s,
                         "to_state": to_s,
                         "for": time_delta if not time_delta else period,
+                        "description": f"{entity_id} via template",
                     }
                 },
                 (to_s.context if to_s else None),
diff --git a/homeassistant/components/webhook/trigger.py b/homeassistant/components/webhook/trigger.py
index 38ae9c5e364..cc03f74922f 100644
--- a/homeassistant/components/webhook/trigger.py
+++ b/homeassistant/components/webhook/trigger.py
@@ -30,6 +30,7 @@ async def _handle_webhook(action, hass, webhook_id, request):
         result["data"] = await request.post()
 
     result["query"] = request.query
+    result["description"] = "webhook"
     hass.async_run_job(action, {"trigger": result})
 
 
diff --git a/homeassistant/components/zone/trigger.py b/homeassistant/components/zone/trigger.py
index f53af0e5d7f..1f0856513dd 100644
--- a/homeassistant/components/zone/trigger.py
+++ b/homeassistant/components/zone/trigger.py
@@ -1,7 +1,13 @@
 """Offer zone automation rules."""
 import voluptuous as vol
 
-from homeassistant.const import CONF_ENTITY_ID, CONF_EVENT, CONF_PLATFORM, CONF_ZONE
+from homeassistant.const import (
+    ATTR_FRIENDLY_NAME,
+    CONF_ENTITY_ID,
+    CONF_EVENT,
+    CONF_PLATFORM,
+    CONF_ZONE,
+)
 from homeassistant.core import callback
 from homeassistant.helpers import condition, config_validation as cv, location
 from homeassistant.helpers.event import async_track_state_change_event
@@ -12,6 +18,8 @@ EVENT_ENTER = "enter"
 EVENT_LEAVE = "leave"
 DEFAULT_EVENT = EVENT_ENTER
 
+_EVENT_DESCRIPTION = {EVENT_ENTER: "entering", EVENT_LEAVE: "leaving"}
+
 TRIGGER_SCHEMA = vol.Schema(
     {
         vol.Required(CONF_PLATFORM): "zone",
@@ -56,6 +64,7 @@ async def async_attach_trigger(hass, config, action, automation_info):
             and from_match
             and not to_match
         ):
+            description = f"{entity} {_EVENT_DESCRIPTION[event]} {zone_state.attributes[ATTR_FRIENDLY_NAME]}"
             hass.async_run_job(
                 action,
                 {
@@ -66,6 +75,7 @@ async def async_attach_trigger(hass, config, action, automation_info):
                         "to_state": to_s,
                         "zone": zone_state,
                         "event": event,
+                        "description": description,
                     }
                 },
                 to_s.context,
diff --git a/tests/components/automation/test_init.py b/tests/components/automation/test_init.py
index d1c2e47a39e..b8f25dc9c46 100644
--- a/tests/components/automation/test_init.py
+++ b/tests/components/automation/test_init.py
@@ -6,6 +6,7 @@ import pytest
 from homeassistant.components import logbook
 import homeassistant.components.automation as automation
 from homeassistant.components.automation import (
+    ATTR_SOURCE,
     DOMAIN,
     EVENT_AUTOMATION_RELOADED,
     EVENT_AUTOMATION_TRIGGERED,
@@ -324,6 +325,7 @@ async def test_shared_context(hass, calls):
     # Ensure event data has all attributes set
     assert args[0].data.get(ATTR_NAME) is not None
     assert args[0].data.get(ATTR_ENTITY_ID) is not None
+    assert args[0].data.get(ATTR_SOURCE) is not None
 
     # Ensure context set correctly for event fired by 'hello' automation
     args, _ = first_automation_listener.call_args
@@ -341,6 +343,7 @@ async def test_shared_context(hass, calls):
     # Ensure event data has all attributes set
     assert args[0].data.get(ATTR_NAME) is not None
     assert args[0].data.get(ATTR_ENTITY_ID) is not None
+    assert args[0].data.get(ATTR_SOURCE) is not None
 
     # Ensure the service call from the second automation
     # shares the same context
@@ -1089,7 +1092,11 @@ async def test_logbook_humanify_automation_triggered_event(hass):
                 ),
                 MockLazyEventPartialState(
                     EVENT_AUTOMATION_TRIGGERED,
-                    {ATTR_ENTITY_ID: "automation.bye", ATTR_NAME: "Bye Automation"},
+                    {
+                        ATTR_ENTITY_ID: "automation.bye",
+                        ATTR_NAME: "Bye Automation",
+                        ATTR_SOURCE: "source of trigger",
+                    },
                 ),
             ],
             entity_attr_cache,
@@ -1104,5 +1111,5 @@ async def test_logbook_humanify_automation_triggered_event(hass):
 
     assert event2["name"] == "Bye Automation"
     assert event2["domain"] == "automation"
-    assert event2["message"] == "has been triggered"
+    assert event2["message"] == "has been triggered by source of trigger"
     assert event2["entity_id"] == "automation.bye"