diff --git a/cms/envs/production.py b/cms/envs/production.py
index fb396f9e3d14..2ac80b94c39f 100644
--- a/cms/envs/production.py
+++ b/cms/envs/production.py
@@ -411,14 +411,6 @@ def get_env_setting(setting):
 # Configure an API auth token at (blockstore URL)/admin/authtoken/token/
 BLOCKSTORE_API_AUTH_TOKEN = AUTH_TOKENS.get('BLOCKSTORE_API_AUTH_TOKEN', None)
 
-# Datadog for events!
-DATADOG = AUTH_TOKENS.get("DATADOG", {})
-DATADOG.update(ENV_TOKENS.get("DATADOG", {}))
-
-# TODO: deprecated (compatibility with previous settings)
-if 'DATADOG_API' in AUTH_TOKENS:
-    DATADOG['api_key'] = AUTH_TOKENS['DATADOG_API']
-
 # Celery Broker
 CELERY_ALWAYS_EAGER = ENV_TOKENS.get("CELERY_ALWAYS_EAGER", False)
 CELERY_BROKER_TRANSPORT = ENV_TOKENS.get("CELERY_BROKER_TRANSPORT", "")
diff --git a/lms/djangoapps/courseware/user_state_client.py b/lms/djangoapps/courseware/user_state_client.py
index 63dcd9da1476..b893200c21d1 100644
--- a/lms/djangoapps/courseware/user_state_client.py
+++ b/lms/djangoapps/courseware/user_state_client.py
@@ -240,9 +240,6 @@ class DjangoXBlockUserStateClient(XBlockUserStateClient):
         even though the actual stored state in the database will be ``"{}"``).
     """
 
-    # Use this sample rate for DataDog events.
-    API_DATADOG_SAMPLE_RATE = 0.1
-
     class ServiceUnavailable(XBlockUserStateClient.ServiceUnavailable):
         """
         This error is raised if the service backing this client is currently unavailable.
diff --git a/lms/envs/production.py b/lms/envs/production.py
index a50dedf9064a..45accf0c4ae1 100644
--- a/lms/envs/production.py
+++ b/lms/envs/production.py
@@ -525,14 +525,6 @@ def get_env_setting(setting):
 # Configure an API auth token at (blockstore URL)/admin/authtoken/token/
 BLOCKSTORE_API_AUTH_TOKEN = AUTH_TOKENS.get('BLOCKSTORE_API_AUTH_TOKEN', None)
 
-# Datadog for events!
-DATADOG = AUTH_TOKENS.get("DATADOG", {})
-DATADOG.update(ENV_TOKENS.get("DATADOG", {}))
-
-# TODO: deprecated (compatibility with previous settings)
-if 'DATADOG_API' in AUTH_TOKENS:
-    DATADOG['api_key'] = AUTH_TOKENS['DATADOG_API']
-
 # Analytics API
 ANALYTICS_API_KEY = AUTH_TOKENS.get("ANALYTICS_API_KEY", ANALYTICS_API_KEY)
 ANALYTICS_API_URL = ENV_TOKENS.get("ANALYTICS_API_URL", ANALYTICS_API_URL)
diff --git a/openedx/core/djangoapps/django_comment_common/comment_client/thread.py b/openedx/core/djangoapps/django_comment_common/comment_client/thread.py
index 6f92313b6ee0..8122f96f226a 100644
--- a/openedx/core/djangoapps/django_comment_common/comment_client/thread.py
+++ b/openedx/core/djangoapps/django_comment_common/comment_client/thread.py
@@ -30,12 +30,6 @@ class Thread(models.Model):
         'close_reason_code', 'edit_reason_code', 'closing_user_id', 'editing_user_id',
     ]
 
-    # metric_tag_fields are used by Datadog to record metrics about the model
-    metric_tag_fields = [
-        'course_id', 'group_id', 'pinned', 'closed', 'anonymous', 'anonymous_to_peers',
-        'endorsed', 'read',
-    ]
-
     # initializable_fields are sent in POST requests
     initializable_fields = updatable_fields + ['thread_type', 'context']
 
diff --git a/xmodule/x_module.py b/xmodule/x_module.py
index fd974c6928f8..73588d7cf299 100644
--- a/xmodule/x_module.py
+++ b/xmodule/x_module.py
@@ -56,9 +56,6 @@
 XMODULE_DURATION_METRIC_NAME = XMODULE_METRIC_NAME + '.duration'
 XMODULE_METRIC_SAMPLE_RATE = 0.1
 
-# Stats event sent to DataDog in order to determine if old XML parsing can be deprecated.
-DEPRECATION_VSCOMPAT_EVENT = 'deprecation.vscompat'
-
 # xblock view names
 
 # This is the view that will be rendered to display the XBlock in the LMS.