diff --git a/frappe/core/doctype/data_import/importer.py b/frappe/core/doctype/data_import/importer.py
index d7ff4250ff..f74022a5f6 100644
--- a/frappe/core/doctype/data_import/importer.py
+++ b/frappe/core/doctype/data_import/importer.py
@@ -1153,7 +1153,8 @@ def build_fields_dict_for_column_matching(parent_doctype):
 	doctypes = [(parent_doctype, None)] + [(df.options, df) for df in parent_meta.get_table_fields()]
 
 	for doctype, table_df in doctypes:
-		translated_table_label = _(table_df.label) if table_df else None
+		table_ref = (table_df.label or table_df.fieldname) if table_df else None
+		translated_table_label = _(table_ref) if table_ref else None
 
 		# name field
 		name_df = frappe._dict(
@@ -1175,7 +1176,7 @@ def build_fields_dict_for_column_matching(parent_doctype):
 		else:
 			name_headers = (
 				f"{table_df.fieldname}.name",  # fieldname
-				f"ID ({table_df.label})",  # label
+				f"ID ({table_ref})",  # label
 				"{} ({})".format(_("ID"), translated_table_label),  # translated label
 			)
 
@@ -1229,7 +1230,7 @@ def build_fields_dict_for_column_matching(parent_doctype):
 					# fieldname
 					f"{table_df.fieldname}.{df.fieldname}",
 					# label
-					f"{label} ({table_df.label})",
+					f"{label} ({table_ref})",
 					# translated label
 					f"{translated_label} ({translated_table_label})",
 				):
diff --git a/frappe/core/doctype/data_import/test_importer.py b/frappe/core/doctype/data_import/test_importer.py
index d10a162182..476ccc33aa 100644
--- a/frappe/core/doctype/data_import/test_importer.py
+++ b/frappe/core/doctype/data_import/test_importer.py
@@ -1,7 +1,7 @@
 # Copyright (c) 2019, Frappe Technologies and Contributors
 # License: MIT. See LICENSE
 import frappe
-from frappe.core.doctype.data_import.importer import Importer
+from frappe.core.doctype.data_import.importer import Importer, build_fields_dict_for_column_matching
 from frappe.tests import IntegrationTestCase
 from frappe.tests.test_query_builder import db_type_is, unimplemented_for
 from frappe.utils import format_duration, getdate
@@ -146,6 +146,22 @@ class TestImporter(IntegrationTestCase):
 		self.assertEqual(updated_doc.table_field_1[0].child_description, "child description")
 		self.assertEqual(updated_doc.table_field_1_again[0].child_title, "child title again")
 
+	def test_data_import_without_label(self):
+		"""Test fallback to fieldname when label is not set for a table."""
+
+		meta = frappe.get_meta(doctype_name)
+		table_field = meta.get_field("table_field_1")
+		original_label = table_field.label
+		table_field.label = None
+		fields_dict = build_fields_dict_for_column_matching(doctype_name)
+		expected_key = "Child Title (table_field_1)"
+		self.assertIn(
+			expected_key, fields_dict, f"Fallback failed: '{expected_key}' not found in mapping dict"
+		)
+		expected_id_key = "ID (table_field_1)"
+		self.assertIn(expected_id_key, fields_dict, "ID fallback failed")
+		table_field.label = original_label  # maintain sanity in test env
+
 	def get_importer(self, doctype, import_file, update=False, use_sniffer=False):
 		data_import = frappe.new_doc("Data Import")
 		data_import.import_type = "Insert New Records" if not update else "Update Existing Records"