diff --git a/moto/s3/models.py b/moto/s3/models.py
index 79a33340f0bf..ef7f8d23651f 100644
--- a/moto/s3/models.py
+++ b/moto/s3/models.py
@@ -2223,11 +2223,22 @@ def put_object_acl(
         bucket_name: str,
         key_name: str,
         acl: Optional[FakeAcl],
+        disable_notification: Optional[bool] = False,
     ) -> None:
         key = self.get_object(bucket_name, key_name)
         # TODO: Support the XML-based ACL format
         if key is not None:
             key.set_acl(acl)
+            bucket = self.get_bucket(key.bucket_name)  # type: ignore
+
+            notify_event_name = (
+                notifications.S3NotificationEvent.OBJECT_ACL_UPDATE_EVENT
+            )
+
+            if not disable_notification:
+                notifications.send_event(
+                    self.account_id, notify_event_name, bucket, key
+                )
         else:
             raise MissingKey(key=key_name)
 
@@ -2574,6 +2585,7 @@ def complete_multipart_upload(
             bucket_name=bucket_name,
             key_name=key.name,
             acl=multipart.acl,
+            disable_notification=True,  # avoid sending ObjectAcl:Put events here
         )
 
         notifications.send_event(
diff --git a/moto/s3/notifications.py b/moto/s3/notifications.py
index 6dcae0007bcf..7cbe2753c354 100644
--- a/moto/s3/notifications.py
+++ b/moto/s3/notifications.py
@@ -41,7 +41,7 @@ class S3NotificationEvent(str, Enum):
     OBJECT_RESTORE_DELETE_EVENT = "s3:ObjectRestore:Delete"
     LIFECYCLE_TRANSITION_EVENT = "s3:LifecycleTransition"
     INTELLIGENT_TIERING_EVENT = "s3:IntelligentTiering"
-    OBJECT_ACL_EVENT = "s3:ObjectAcl:Put"
+    OBJECT_ACL_UPDATE_EVENT = "s3:ObjectAcl:Put"
     LIFECYCLE_EXPIRATION_EVENT = "s3:LifecycleExpiration:*"
     LIFECYCLEEXPIRATION_DELETE_EVENT = "s3:LifecycleExpiration:Delete"
     LIFECYCLE_EXPIRATION_DELETE_MARKER_CREATED_EVENT = (
diff --git a/tests/test_s3/test_s3_eventbridge_integration.py b/tests/test_s3/test_s3_eventbridge_integration.py
index 5de1e118a355..8fa7ef27704f 100644
--- a/tests/test_s3/test_s3_eventbridge_integration.py
+++ b/tests/test_s3/test_s3_eventbridge_integration.py
@@ -225,7 +225,7 @@ def test_delete_object_notification():
     s3_client.delete_object(Bucket=bucket_name, Key="keyname")
 
     events = _get_send_events()
-    assert len(events) == 3  # [PutObject, ObjectTagging, DeleteObect]
+    assert len(events) == 3  # [PutObject, ObjectTagging, DeleteObject]
     event_message = json.loads(events[-1]["message"])
     assert event_message["detail-type"] == "Object Deleted"
     assert event_message["source"] == "aws.s3"
@@ -340,3 +340,32 @@ def test_delete_object_tagging_notification():
     assert event_message["region"] == REGION_NAME
     assert event_message["detail"]["bucket"]["name"] == bucket_name
     assert event_message["detail"]["reason"] == "ObjectTagging"
+
+
+@mock_aws
+def test_delete_object_acl_update_notification():
+    resource_names = _seteup_bucket_notification_eventbridge()
+    bucket_name = resource_names["bucket_name"]
+    s3_client = boto3.client("s3", region_name=REGION_NAME)
+
+    # Put Object
+    s3_client.put_object(Bucket=bucket_name, Key="keyname", Body="bodyofnewobject")
+
+    # Put Object ACL
+    s3_client.put_object_acl(Bucket=bucket_name, Key="keyname", ACL="public-read")
+
+    # Delete Object ACL
+    s3_client.put_object_acl(Bucket=bucket_name, Key="keyname", ACL="private")
+
+    events = _get_send_events()
+    assert (
+        len(events) == 4
+    )  # [PutObject, ObjectTagging, CompleteMultipartUpload, ObjectAcl]
+    event_message = json.loads(events[2]["message"])
+    assert event_message["detail-type"] == "Object ACL Updated"
+    assert event_message["source"] == "aws.s3"
+    assert event_message["account"] == ACCOUNT_ID
+    assert event_message["region"] == REGION_NAME
+    assert event_message["detail"]["bucket"]["name"] == bucket_name
+    assert event_message["detail"]["object"]["key"] == "keyname"
+    assert event_message["detail"]["reason"] == "ObjectAcl"
diff --git a/tests/test_s3/test_s3_notifications.py b/tests/test_s3/test_s3_notifications.py
index 87e45ce0503b..924a2ec6fda4 100644
--- a/tests/test_s3/test_s3_notifications.py
+++ b/tests/test_s3/test_s3_notifications.py
@@ -51,7 +51,7 @@
             "Object Storage Class Changed",
         ),
         ([S3NotificationEvent.INTELLIGENT_TIERING_EVENT], "Object Access Tier Changed"),
-        ([S3NotificationEvent.OBJECT_ACL_EVENT], "Object ACL Updated"),
+        ([S3NotificationEvent.OBJECT_ACL_UPDATE_EVENT], "Object ACL Updated"),
         ([S3NotificationEvent.OBJECT_TAGGING_PUT_EVENT], "Object Tags Added"),
         ([S3NotificationEvent.OBJECT_TAGGING_DELETE_EVENT], "Object Tags Deleted"),
     ],