diff --git a/litellm/integrations/azure_sentinel/azure_sentinel.py b/litellm/integrations/azure_sentinel/azure_sentinel.py
index 182a2e185ef..5f8afe58cb0 100644
--- a/litellm/integrations/azure_sentinel/azure_sentinel.py
+++ b/litellm/integrations/azure_sentinel/azure_sentinel.py
@@ -61,13 +61,15 @@ def __init__(
             client_secret (str, optional): Azure Client Secret for OAuth2 authentication.
                 If not provided, will use AZURE_SENTINEL_CLIENT_SECRET or AZURE_CLIENT_SECRET env var.
             audit_stream_name (str, optional): Stream name from DCR for audit logs.
-                If not provided, audit logs use the standard stream name.
+                If not provided, will use AZURE_SENTINEL_AUDIT_STREAM_NAME env var or the standard stream name.
         """
         self.async_httpx_client = get_async_httpx_client(llm_provider=httpxSpecialProvider.LoggingCallback)
 
         resolved_dcr_immutable_id = dcr_immutable_id or os.getenv("AZURE_SENTINEL_DCR_IMMUTABLE_ID")
         resolved_stream_name = stream_name or os.getenv("AZURE_SENTINEL_STREAM_NAME") or "Custom-LiteLLM"
-        resolved_audit_stream_name = audit_stream_name or resolved_stream_name
+        resolved_audit_stream_name = (
+            audit_stream_name or os.getenv("AZURE_SENTINEL_AUDIT_STREAM_NAME") or resolved_stream_name
+        )
         resolved_endpoint = endpoint or os.getenv("AZURE_SENTINEL_ENDPOINT")
         resolved_tenant_id = tenant_id or os.getenv("AZURE_SENTINEL_TENANT_ID") or os.getenv("AZURE_TENANT_ID")
         resolved_client_id = client_id or os.getenv("AZURE_SENTINEL_CLIENT_ID") or os.getenv("AZURE_CLIENT_ID")
diff --git a/tests/test_litellm/integrations/test_azure_sentinel.py b/tests/test_litellm/integrations/test_azure_sentinel.py
index 30b246202fc..55e462c82b8 100644
--- a/tests/test_litellm/integrations/test_azure_sentinel.py
+++ b/tests/test_litellm/integrations/test_azure_sentinel.py
@@ -263,3 +263,36 @@ async def mock_post(*args, **kwargs):
     ]
     assert "Custom-LiteLLM-Audit" in audit_call.kwargs["url"]
     assert json.loads(audit_call.kwargs["data"].decode("utf-8")) == [audit_log]
+
+
+@pytest.mark.asyncio
+async def test_azure_sentinel_audit_stream_name_from_env_var(monkeypatch):
+    """Audit stream resolves from AZURE_SENTINEL_AUDIT_STREAM_NAME when the string
+    callback constructs the logger with no audit_stream_name argument."""
+    monkeypatch.setenv("AZURE_SENTINEL_STREAM_NAME", "Custom-LiteLLM-Standard")
+    monkeypatch.setenv("AZURE_SENTINEL_AUDIT_STREAM_NAME", "Custom-LiteLLM-Audit")
+
+    with patch("asyncio.create_task", side_effect=_close_periodic_flush_task):
+        logger = AzureSentinelLogger(
+            dcr_immutable_id="dcr-test123456789",
+            endpoint="https://test-dce.eastus-1.ingest.monitor.azure.com",
+            tenant_id="test-tenant-id",
+            client_id="test-client-id",
+            client_secret="test-client-secret",
+        )
+
+    assert logger.audit_stream_name == "Custom-LiteLLM-Audit"
+    assert "streams/Custom-LiteLLM-Audit" in logger.audit_api_endpoint
+    assert "streams/Custom-LiteLLM-Standard" in logger.api_endpoint
+
+    with patch("asyncio.create_task", side_effect=_close_periodic_flush_task):
+        explicit_logger = AzureSentinelLogger(
+            dcr_immutable_id="dcr-test123456789",
+            endpoint="https://test-dce.eastus-1.ingest.monitor.azure.com",
+            tenant_id="test-tenant-id",
+            client_id="test-client-id",
+            client_secret="test-client-secret",
+            audit_stream_name="Custom-LiteLLM-Explicit",
+        )
+
+    assert explicit_logger.audit_stream_name == "Custom-LiteLLM-Explicit"