diff --git a/litellm/integrations/s3_v2.py b/litellm/integrations/s3_v2.py
index 405bf9698cc..f767f61be87 100644
--- a/litellm/integrations/s3_v2.py
+++ b/litellm/integrations/s3_v2.py
@@ -403,9 +403,8 @@ class S3Logger(CustomBatchLogger, BaseAWSLLM):
             # Prepare the signed headers
             signed_headers = dict(aws_request.headers.items())
 
-            # Make the request
             response = await self.async_httpx_client.put(
-                url, data=json_string, headers=signed_headers
+                prepped.url, data=json_string, headers=signed_headers
             )
             response.raise_for_status()
         except Exception as e:
@@ -582,8 +581,9 @@ class S3Logger(CustomBatchLogger, BaseAWSLLM):
                 if self.s3_verify is not None
                 else None
             )
-            # Make the request
-            response = httpx_client.put(url, data=json_string, headers=signed_headers)
+            response = httpx_client.put(
+                prepped.url, data=json_string, headers=signed_headers
+            )
             response.raise_for_status()
         except Exception as e:
             verbose_logger.exception(f"Error uploading to s3: {str(e)}")
@@ -674,8 +674,9 @@ class S3Logger(CustomBatchLogger, BaseAWSLLM):
             # Prepare the signed headers
             signed_headers = dict(aws_request.headers.items())
 
-            # Make the request
-            response = await self.async_httpx_client.get(url, headers=signed_headers)
+            response = await self.async_httpx_client.get(
+                prepped.url, headers=signed_headers
+            )
 
             if response.status_code != 200:
                 verbose_logger.exception(
diff --git a/tests/test_litellm/integrations/test_s3_v2.py b/tests/test_litellm/integrations/test_s3_v2.py
index b53c05fa241..943fe4ec37b 100644
--- a/tests/test_litellm/integrations/test_s3_v2.py
+++ b/tests/test_litellm/integrations/test_s3_v2.py
@@ -292,6 +292,50 @@ class TestS3V2UnitTests:
 
         assert result == {"downloaded": "data"}
 
+    @patch("asyncio.create_task")
+    @patch("litellm.integrations.s3_v2.CustomBatchLogger.periodic_flush")
+    def test_s3_v2_put_url_encodes_spaces_in_object_key(
+        self, mock_periodic_flush, mock_create_task
+    ):
+        import requests
+        from unittest.mock import AsyncMock
+
+        from litellm.types.integrations.s3_v2 import s3BatchLoggingElement
+
+        mock_periodic_flush.return_value = None
+        mock_create_task.return_value = None
+
+        mock_response = MagicMock()
+        mock_response.status_code = 200
+        mock_response.raise_for_status = MagicMock()
+
+        s3_object_key = "My Team/2025-09-14/test-key.json"
+        test_element = s3BatchLoggingElement(
+            s3_object_key=s3_object_key,
+            payload={"test": "data"},
+            s3_object_download_filename="test-file.json",
+        )
+
+        s3_logger = S3Logger(
+            s3_bucket_name="test-bucket",
+            s3_endpoint_url="https://s3.amazonaws.com",
+            s3_aws_access_key_id="test-key",
+            s3_aws_secret_access_key="test-secret",
+            s3_region_name="us-east-1",
+        )
+        s3_logger.async_httpx_client = AsyncMock()
+        s3_logger.async_httpx_client.put.return_value = mock_response
+
+        asyncio.run(s3_logger.async_upload_data_to_s3(test_element))
+
+        call_args = s3_logger.async_httpx_client.put.call_args
+        assert call_args is not None
+        actual_url = call_args[0][0]
+        raw_url = f"https://s3.amazonaws.com/test-bucket/{s3_object_key}"
+        expected_url = requests.Request("PUT", raw_url).prepare().url
+        assert actual_url == expected_url
+        assert " " not in actual_url
+
 @pytest.mark.asyncio
 async def test_async_log_event_skips_when_standard_logging_object_missing():
     """