diff --git a/libs/community/langchain_community/document_loaders/csv_loader.py b/libs/community/langchain_community/document_loaders/csv_loader.py
index fca2f1f0f9b..37e6f565531 100644
--- a/libs/community/langchain_community/document_loaders/csv_loader.py
+++ b/libs/community/langchain_community/document_loaders/csv_loader.py
@@ -97,7 +97,9 @@ class CSVLoader(BaseLoader):
                     f"Source column '{self.source_column}' not found in CSV file."
                 )
             content = "\n".join(
-                f"{k.strip()}: {v.strip() if v is not None else v}"
+                f"""{k.strip() if k is not None else k}: {v.strip()
+                if isinstance(v, str) else ','.join(map(str.strip, v))
+                if isinstance(v, list) else v}"""
                 for k, v in row.items()
                 if k not in self.metadata_columns
             )
diff --git a/libs/community/tests/unit_tests/document_loaders/test_csv_loader.py b/libs/community/tests/unit_tests/document_loaders/test_csv_loader.py
index a9d4212c15e..a7ab65e35a4 100644
--- a/libs/community/tests/unit_tests/document_loaders/test_csv_loader.py
+++ b/libs/community/tests/unit_tests/document_loaders/test_csv_loader.py
@@ -85,6 +85,29 @@ class TestCSVLoader:
         # Assert
         assert result == expected_docs
 
+    def test_csv_loader_load_none_column_file(self) -> None:
+        # Setup
+        file_path = self._get_csv_file_path("test_none_col.csv")
+        expected_docs = [
+            Document(
+                page_content="column1: value1\ncolumn2: value2\n"
+                "column3: value3\nNone: value4,value5",
+                metadata={"source": file_path, "row": 0},
+            ),
+            Document(
+                page_content="column1: value6\ncolumn2: value7\n"
+                "column3: value8\nNone: value9",
+                metadata={"source": file_path, "row": 1},
+            ),
+        ]
+
+        # Exercise
+        loader = CSVLoader(file_path=file_path)
+        result = loader.load()
+
+        # Assert
+        assert result == expected_docs
+
     # utility functions
     def _get_csv_file_path(self, file_name: str) -> str:
         return str(Path(__file__).resolve().parent / "test_docs" / "csv" / file_name)
diff --git a/libs/community/tests/unit_tests/document_loaders/test_directory_loader.py b/libs/community/tests/unit_tests/document_loaders/test_directory_loader.py
index d8795a6ce3b..e385e77b33e 100644
--- a/libs/community/tests/unit_tests/document_loaders/test_directory_loader.py
+++ b/libs/community/tests/unit_tests/document_loaders/test_directory_loader.py
@@ -58,6 +58,22 @@ class TestDirectoryLoader:
                     "row": 1,
                 },
             ),
+            Document(
+                page_content="column1: value1\ncolumn2: value2\n"
+                "column3: value3\nNone: value4,value5",
+                metadata={
+                    "source": self._get_csv_file_path("test_none_col.csv"),
+                    "row": 0,
+                },
+            ),
+            Document(
+                page_content="column1: value6\ncolumn2: value7\n"
+                "column3: value8\nNone: value9",
+                metadata={
+                    "source": self._get_csv_file_path("test_none_col.csv"),
+                    "row": 1,
+                },
+            ),
         ]
 
         loaded_docs = sorted(loader.load(), key=lambda doc: doc.metadata["source"])
@@ -141,6 +157,20 @@ class TestDirectoryLoader:
                 metadata={"source": file_path, "row": 0},
             )
         ]
+        file_name = "test_none_col.csv"
+        file_path = self._get_csv_file_path(file_name)
+        expected_docs += [
+            Document(
+                page_content="column1: value1\ncolumn2: value2\n"
+                "column3: value3\nNone: value4,value5",
+                metadata={"source": file_path, "row": 0},
+            ),
+            Document(
+                page_content="column1: value6\ncolumn2: value7\n"
+                "column3: value8\nNone: value9",
+                metadata={"source": file_path, "row": 1},
+            ),
+        ]
 
         # Assert
         loader = DirectoryLoader(dir_path, loader_cls=CSVLoader)
diff --git a/libs/community/tests/unit_tests/document_loaders/test_docs/csv/test_none_col.csv b/libs/community/tests/unit_tests/document_loaders/test_docs/csv/test_none_col.csv
new file mode 100644
index 00000000000..a6a3d77e050
--- /dev/null
+++ b/libs/community/tests/unit_tests/document_loaders/test_docs/csv/test_none_col.csv
@@ -0,0 +1,3 @@
+column1,column2,column3
+value1,value2,value3,value4,value5
+value6,value7,value8,value9