diff --git a/cpp/tests/io/parquet_reader_test.cpp b/cpp/tests/io/parquet_reader_test.cpp
index ab4645c2e25..7986a3c6d70 100644
--- a/cpp/tests/io/parquet_reader_test.cpp
+++ b/cpp/tests/io/parquet_reader_test.cpp
@@ -2725,7 +2725,9 @@ TYPED_TEST(ParquetReaderPredicatePushdownTest, FilterTyped)
   CUDF_TEST_EXPECT_TABLES_EQUAL(expected->view(), result_table);
 }
 
-TEST_F(ParquetReaderTest, ListsWideTable)
+// The test below requires several minutes to complete with memcheck, thus it is disabled by
+// default.
+TEST_F(ParquetReaderTest, DISABLED_ListsWideTable)
 {
   auto constexpr num_rows = 2;
   auto constexpr num_cols = 26'755;  // for slightly over 2B keys