diff --git a/pandas/core/indexes/period.py b/pandas/core/indexes/period.py
index 3fb57daf2a74b..f8a62c6a8e006 100644
--- a/pandas/core/indexes/period.py
+++ b/pandas/core/indexes/period.py
@@ -86,8 +86,6 @@ class PeriodIndex(DatetimeIndexOpsMixin):
     hour : int, array, or Series, default None
     minute : int, array, or Series, default None
     second : int, array, or Series, default None
-    tz : object, default None
-        Timezone for converting datetime64 data to Periods.
     dtype : str or PeriodDtype, default None
 
     Attributes
@@ -194,7 +192,6 @@ def __new__(
         data=None,
         ordinal=None,
         freq=None,
-        tz=None,
         dtype=None,
         copy=False,
         name=None,
diff --git a/pandas/tests/indexes/period/test_period.py b/pandas/tests/indexes/period/test_period.py
index 273d02ca27d7b..b0de16a25bcc3 100644
--- a/pandas/tests/indexes/period/test_period.py
+++ b/pandas/tests/indexes/period/test_period.py
@@ -325,11 +325,6 @@ def test_index_unique(self):
         tm.assert_index_equal(idx.unique(), expected)
         assert idx.nunique() == 3
 
-        idx = PeriodIndex([2000, 2007, 2007, 2009, 2007], freq="A-JUN", tz="US/Eastern")
-        expected = PeriodIndex([2000, 2007, 2009], freq="A-JUN", tz="US/Eastern")
-        tm.assert_index_equal(idx.unique(), expected)
-        assert idx.nunique() == 3
-
     def test_shift(self):
         # This is tested in test_arithmetic
         pass