diff --git a/python/cudf/cudf/io/parquet.py b/python/cudf/cudf/io/parquet.py
index 6c91a5a8765..9ff4db2822b 100644
--- a/python/cudf/cudf/io/parquet.py
+++ b/python/cudf/cudf/io/parquet.py
@@ -448,6 +448,12 @@ def read_parquet(
 ):
     """{docstring}"""
 
+    if strings_to_categorical is not False:
+        warnings.warn(
+            "`strings_to_categorical` is deprecated and will be removed in "
+            "a future version of cudf.",
+            FutureWarning,
+        )
     # Do not allow the user to set file-opening options
     # when `use_python_file_object=False` is specified
     if use_python_file_object is False:
diff --git a/python/cudf/cudf/tests/test_parquet.py b/python/cudf/cudf/tests/test_parquet.py
index a9cf657aaa4..3a35a0088ff 100644
--- a/python/cudf/cudf/tests/test_parquet.py
+++ b/python/cudf/cudf/tests/test_parquet.py
@@ -31,6 +31,7 @@
     TIMEDELTA_TYPES,
     assert_eq,
     assert_exceptions_equal,
+    expect_warning_if,
     set_random_null_mask_inplace,
 )
 
@@ -310,9 +311,12 @@ def test_parquet_reader_strings(tmpdir, strings_to_categorical, has_null):
     assert os.path.exists(fname)
 
     if strings_to_categorical is not None:
-        gdf = cudf.read_parquet(
-            fname, engine="cudf", strings_to_categorical=strings_to_categorical
-        )
+        with expect_warning_if(strings_to_categorical is not False):
+            gdf = cudf.read_parquet(
+                fname,
+                engine="cudf",
+                strings_to_categorical=strings_to_categorical,
+            )
     else:
         gdf = cudf.read_parquet(fname, engine="cudf")
 
diff --git a/python/cudf/cudf/utils/ioutils.py b/python/cudf/cudf/utils/ioutils.py
index bf9dc226d11..4323db2c9b6 100644
--- a/python/cudf/cudf/utils/ioutils.py
+++ b/python/cudf/cudf/utils/ioutils.py
@@ -169,6 +169,11 @@
 strings_to_categorical : boolean, default False
     If True, return string columns as GDF_CATEGORY dtype; if False, return a
     as GDF_STRING dtype.
+
+    .. deprecated:: 23.08
+
+        This parameter is deprecated and will be removed in a future
+        version of cudf.
 categorical_partitions : boolean, default True
     Whether directory-partitioned columns should be interpreted as categorical
     or raw dtypes.