diff --git a/pytest.ini b/pytest.ini
index 1a7d9a83..38b441a6 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -9,6 +9,7 @@ markers =
     bucket_encryption
     checksum
     cloud_transition
+    cors
     encryption
     fails_on_aws
     fails_on_dbstore
diff --git a/s3tests_boto3/functional/test_s3.py b/s3tests_boto3/functional/test_s3.py
index b73a18b7..de32cde4 100644
--- a/s3tests_boto3/functional/test_s3.py
+++ b/s3tests_boto3/functional/test_s3.py
@@ -6576,6 +6576,7 @@ def test_100_continue():
     status = _simple_http_req_100_cont(host, port, is_secure, 'PUT', resource)
     assert status == '100'
 
+@pytest.mark.cors
 def test_set_cors():
     bucket_name = get_new_bucket()
     client = get_client()
@@ -6611,6 +6612,7 @@ def _cors_request_and_check(func, url, headers, expect_status, expect_allow_orig
     assert r.headers.get('access-control-allow-origin', None) == expect_allow_origin
     assert r.headers.get('access-control-allow-methods', None) == expect_allow_methods
 
+@pytest.mark.cors
 def test_cors_origin_response():
     bucket_name = _setup_bucket_acl(bucket_acl='public-read')
     client = get_client()
@@ -6686,6 +6688,7 @@ def test_cors_origin_response():
     _cors_request_and_check(requests.options, url, {'Origin': 'foo.put', 'Access-Control-Request-Method': 'GET'}, 403, None, None)
     _cors_request_and_check(requests.options, url, {'Origin': 'foo.put', 'Access-Control-Request-Method': 'PUT'}, 200, 'foo.put', 'PUT')
 
+@pytest.mark.cors
 def test_cors_origin_wildcard():
     bucket_name = _setup_bucket_acl(bucket_acl='public-read')
     client = get_client()
@@ -6711,6 +6714,7 @@ def test_cors_origin_wildcard():
     _cors_request_and_check(requests.get, url, None, 200, None, None)
     _cors_request_and_check(requests.get, url, {'Origin': 'example.origin'}, 200, '*', 'GET')
 
+@pytest.mark.cors
 def test_cors_header_option():
     bucket_name = _setup_bucket_acl(bucket_acl='public-read')
     client = get_client()
@@ -6776,24 +6780,28 @@ def _test_cors_options_presigned_method(client, method, cannedACL=None):
     _cors_request_and_check(requests.options, url, headers,
                             200, 'example', httpMethod)
 
+@pytest.mark.cors
 def test_cors_presigned_get_object():
     _test_cors_options_presigned_method(
         client=get_client(),
         method='get_object',
     )
 
+@pytest.mark.cors
 def test_cors_presigned_get_object_tenant():
     _test_cors_options_presigned_method(
         client=get_tenant_client(),
         method='get_object',
     )
 
+@pytest.mark.cors
 def test_cors_presigned_put_object():
     _test_cors_options_presigned_method(
         client=get_client(),
         method='put_object',
     )
 
+@pytest.mark.cors
 def test_cors_presigned_put_object_with_acl():
     _test_cors_options_presigned_method(
         client=get_client(),
@@ -6801,12 +6809,14 @@ def test_cors_presigned_put_object_with_acl():
         cannedACL='private',
     )
 
+@pytest.mark.cors
 def test_cors_presigned_put_object_tenant():
     _test_cors_options_presigned_method(
         client=get_tenant_client(),
         method='put_object',
     )
 
+@pytest.mark.cors
 def test_cors_presigned_put_object_tenant_with_acl():
     _test_cors_options_presigned_method(
         client=get_tenant_client(),