diff --git a/pandas/core/construction.py b/pandas/core/construction.py
index 78a7f1890b5de..b5a17e1ef882e 100644
--- a/pandas/core/construction.py
+++ b/pandas/core/construction.py
@@ -33,7 +33,7 @@
 
 from pandas.core.dtypes.base import (
     ExtensionDtype,
-    registry,
+    _registry as registry,
 )
 from pandas.core.dtypes.cast import (
     construct_1d_arraylike_from_scalar,
diff --git a/pandas/core/dtypes/base.py b/pandas/core/dtypes/base.py
index d83405803753a..129c6c061d11c 100644
--- a/pandas/core/dtypes/base.py
+++ b/pandas/core/dtypes/base.py
@@ -388,7 +388,7 @@ def register_extension_dtype(cls: Type[ExtensionDtype]) -> Type[ExtensionDtype]:
     ... class MyExtensionDtype(ExtensionDtype):
     ...     name = "myextension"
     """
-    registry.register(cls)
+    _registry.register(cls)
     return cls
 
 
@@ -452,4 +452,4 @@ def find(
         return None
 
 
-registry = Registry()
+_registry = Registry()
diff --git a/pandas/core/dtypes/common.py b/pandas/core/dtypes/common.py
index 32ea82d9c0402..b9e785ff2f887 100644
--- a/pandas/core/dtypes/common.py
+++ b/pandas/core/dtypes/common.py
@@ -23,7 +23,7 @@
     Optional,
 )
 
-from pandas.core.dtypes.base import registry
+from pandas.core.dtypes.base import _registry as registry
 from pandas.core.dtypes.dtypes import (
     CategoricalDtype,
     DatetimeTZDtype,
diff --git a/pandas/tests/arrays/test_array.py b/pandas/tests/arrays/test_array.py
index 5d2b7c43f6765..bfe588883d9f3 100644
--- a/pandas/tests/arrays/test_array.py
+++ b/pandas/tests/arrays/test_array.py
@@ -5,7 +5,7 @@
 import pytest
 import pytz
 
-from pandas.core.dtypes.base import registry
+from pandas.core.dtypes.base import _registry as registry
 
 import pandas as pd
 import pandas._testing as tm
diff --git a/pandas/tests/arrays/test_period.py b/pandas/tests/arrays/test_period.py
index e7f3e8c659316..2592a0263c585 100644
--- a/pandas/tests/arrays/test_period.py
+++ b/pandas/tests/arrays/test_period.py
@@ -4,7 +4,7 @@
 from pandas._libs.tslibs import iNaT
 from pandas._libs.tslibs.period import IncompatibleFrequency
 
-from pandas.core.dtypes.base import registry
+from pandas.core.dtypes.base import _registry as registry
 from pandas.core.dtypes.dtypes import PeriodDtype
 
 import pandas as pd
diff --git a/pandas/tests/dtypes/test_dtypes.py b/pandas/tests/dtypes/test_dtypes.py
index ca311768dc2d9..51a7969162abf 100644
--- a/pandas/tests/dtypes/test_dtypes.py
+++ b/pandas/tests/dtypes/test_dtypes.py
@@ -4,7 +4,7 @@
 import pytest
 import pytz
 
-from pandas.core.dtypes.base import registry
+from pandas.core.dtypes.base import _registry as registry
 from pandas.core.dtypes.common import (
     is_bool_dtype,
     is_categorical,
diff --git a/pandas/tests/frame/indexing/test_setitem.py b/pandas/tests/frame/indexing/test_setitem.py
index e8cdcfcaafa86..199347383b171 100644
--- a/pandas/tests/frame/indexing/test_setitem.py
+++ b/pandas/tests/frame/indexing/test_setitem.py
@@ -5,7 +5,7 @@
 
 import pandas.util._test_decorators as td
 
-from pandas.core.dtypes.base import registry as ea_registry
+from pandas.core.dtypes.base import _registry as ea_registry
 from pandas.core.dtypes.common import (
     is_categorical_dtype,
     is_interval_dtype,