diff --git a/oslo_db/sqlalchemy/exc_filters.py b/oslo_db/sqlalchemy/exc_filters.py
index efdbb2f7..aa5b55a7 100644
--- a/oslo_db/sqlalchemy/exc_filters.py
+++ b/oslo_db/sqlalchemy/exc_filters.py
@@ -270,6 +270,7 @@ def _raise_operational_errors_directly_filter(operational_error,
 
 
 @filters("mysql", sqla_exc.OperationalError, r".*\(.*(?:2002|2003|2006|2013)")
+@filters("postgresql", sqla_exc.OperationalError, r".*could not connect to server")  # noqa
 @filters("ibm_db_sa", sqla_exc.OperationalError, r".*(?:30081)")
 def _is_db_connection_error(operational_error, match, engine_name,
                             is_disconnect):
diff --git a/oslo_db/tests/sqlalchemy/test_exc_filters.py b/oslo_db/tests/sqlalchemy/test_exc_filters.py
index 157a183e..b2845a22 100644
--- a/oslo_db/tests/sqlalchemy/test_exc_filters.py
+++ b/oslo_db/tests/sqlalchemy/test_exc_filters.py
@@ -745,6 +745,21 @@ class TestDBDisconnected(TestsExceptionFilter):
             is_disconnect=False
         )
 
+    def test_postgresql_ping_listener_disconnected(self):
+        self._test_ping_listener_disconnected(
+            "postgresql",
+            self.OperationalError(
+                "could not connect to server: Connection refused"),
+        )
+
+    def test_postgresql_ping_listener_disconnected_regex_only(self):
+        self._test_ping_listener_disconnected(
+            "postgresql",
+            self.OperationalError(
+                "could not connect to server: Connection refused"),
+            is_disconnect=False
+        )
+
 
 class TestDBConnectRetry(TestsExceptionFilter):