diff --git a/pandas/_testing/__init__.py b/pandas/_testing/__init__.py
index eb2905751a9b4..6a7a1c7126cd3 100644
--- a/pandas/_testing/__init__.py
+++ b/pandas/_testing/__init__.py
@@ -27,6 +27,7 @@
 from pandas._typing import (
     Dtype,
     Frequency,
+    NpDtype,
 )
 from pandas.compat import pa_version_under6p0
 
@@ -124,12 +125,13 @@
 _N = 30
 _K = 4
 
-UNSIGNED_INT_NUMPY_DTYPES: list[Dtype] = ["uint8", "uint16", "uint32", "uint64"]
+UNSIGNED_INT_NUMPY_DTYPES: list[NpDtype] = ["uint8", "uint16", "uint32", "uint64"]
 UNSIGNED_INT_EA_DTYPES: list[Dtype] = ["UInt8", "UInt16", "UInt32", "UInt64"]
-SIGNED_INT_NUMPY_DTYPES: list[Dtype] = [int, "int8", "int16", "int32", "int64"]
+SIGNED_INT_NUMPY_DTYPES: list[NpDtype] = [int, "int8", "int16", "int32", "int64"]
 SIGNED_INT_EA_DTYPES: list[Dtype] = ["Int8", "Int16", "Int32", "Int64"]
 ALL_INT_NUMPY_DTYPES = UNSIGNED_INT_NUMPY_DTYPES + SIGNED_INT_NUMPY_DTYPES
 ALL_INT_EA_DTYPES = UNSIGNED_INT_EA_DTYPES + SIGNED_INT_EA_DTYPES
+ALL_INT_DTYPES: list[Dtype] = [*ALL_INT_NUMPY_DTYPES, *ALL_INT_EA_DTYPES]
 
 FLOAT_NUMPY_DTYPES: list[Dtype] = [float, "float32", "float64"]
 FLOAT_EA_DTYPES: list[Dtype] = ["Float32", "Float64"]
diff --git a/pandas/conftest.py b/pandas/conftest.py
index 3b167d9ef4fe2..e4e32ab4a7350 100644
--- a/pandas/conftest.py
+++ b/pandas/conftest.py
@@ -1486,7 +1486,7 @@ def any_int_ea_dtype(request):
     return request.param
 
 
-@pytest.fixture(params=tm.ALL_INT_NUMPY_DTYPES + tm.ALL_INT_EA_DTYPES)
+@pytest.fixture(params=tm.ALL_INT_DTYPES)
 def any_int_dtype(request):
     """
     Parameterized fixture for any nullable integer dtype.