diff --git a/pandas/_libs/parsers.pyx b/pandas/_libs/parsers.pyx
index c29cdbcf5975e..b6d29672c8d30 100644
--- a/pandas/_libs/parsers.pyx
+++ b/pandas/_libs/parsers.pyx
@@ -1378,6 +1378,7 @@ STR_NA_VALUES = {
     "#N/A N/A",
     "#N/A",
     "N/A",
+    "N / A",
     "n/a",
     "NA",
     "<NA>",
diff --git a/pandas/tests/io/parser/test_na_values.py b/pandas/tests/io/parser/test_na_values.py
index 1e370f649aef8..9c54917487a66 100644
--- a/pandas/tests/io/parser/test_na_values.py
+++ b/pandas/tests/io/parser/test_na_values.py
@@ -119,6 +119,7 @@ def test_default_na_values(all_parsers):
         "-1.#QNAN",
         "#N/A",
         "N/A",
+        "N / A",
         "n/a",
         "NA",
         "<NA>",