diff --git a/doc/source/whatsnew/v0.24.0.txt b/doc/source/whatsnew/v0.24.0.txt
index 51c398518c153..3841b3c924724 100644
--- a/doc/source/whatsnew/v0.24.0.txt
+++ b/doc/source/whatsnew/v0.24.0.txt
@@ -943,6 +943,7 @@ Removal of prior version deprecations/changes
 - Strings passed into :meth:`DataFrame.groupby` that refer to both column and index levels will raise a ``ValueError`` (:issue:`14432`)
 - :meth:`Index.repeat` and :meth:`MultiIndex.repeat` have renamed the ``n`` argument to ``repeats`` (:issue:`14645`)
 - Removal of the previously deprecated ``as_indexer`` keyword completely from ``str.match()`` (:issue:`22356`, :issue:`6581`)
+- The modules ``pandas.types``, ``pandas.computation``, and ``pandas.util.decorators`` have been removed (:issue:`16157`, :issue:`16250`)
 - Removed the ``pandas.formats.style`` shim for :class:`pandas.io.formats.style.Styler` (:issue:`16059`)
 - :func:`pandas.pnow`, :func:`pandas.match`, :func:`pandas.groupby`, :func:`pd.get_store`, ``pd.Expr``, and ``pd.Term`` have been removed (:issue:`15538`, :issue:`15940`)
 - :meth:`Categorical.searchsorted` and :meth:`Series.searchsorted` have renamed the ``v`` argument to ``value`` (:issue:`14645`)
diff --git a/pandas/computation/__init__.py b/pandas/computation/__init__.py
deleted file mode 100644
index e69de29bb2d1d..0000000000000
diff --git a/pandas/computation/expressions.py b/pandas/computation/expressions.py
deleted file mode 100644
index d194cd2404c9d..0000000000000
--- a/pandas/computation/expressions.py
+++ /dev/null
@@ -1,15 +0,0 @@
-import warnings
-
-
-def set_use_numexpr(v=True):
-    """
-    .. deprecated:: 0.20.0
-        Use ``pandas.set_option('compute.use_numexpr', v)`` instead.
-    """
-    warnings.warn("pandas.computation.expressions.set_use_numexpr is "
-                  "deprecated and will be removed in a future version.\n"
-                  "you can toggle usage of numexpr via "
-                  "pandas.get_option('compute.use_numexpr')",
-                  FutureWarning, stacklevel=2)
-    from pandas import set_option
-    set_option('compute.use_numexpr', v)
diff --git a/pandas/tests/api/test_api.py b/pandas/tests/api/test_api.py
index bb544d2ee81fd..fef87c9e6c4c2 100644
--- a/pandas/tests/api/test_api.py
+++ b/pandas/tests/api/test_api.py
@@ -135,20 +135,6 @@ def test_TimeGrouper(self):
             pd.TimeGrouper(freq='D')
 
 
-class TestTypes(object):
-
-    def test_deprecation_access_func(self):
-        with tm.assert_produces_warning(
-                FutureWarning, check_stacklevel=False):
-            from pandas.types.concat import union_categoricals
-            c1 = pd.Categorical(list('aabc'))
-            c2 = pd.Categorical(list('abcd'))
-            union_categoricals(
-                [c1, c2],
-                sort_categories=True,
-                ignore_order=True)
-
-
 class TestCDateRange(object):
 
     def test_deprecation_cdaterange(self):
diff --git a/pandas/types/__init__.py b/pandas/types/__init__.py
deleted file mode 100644
index e69de29bb2d1d..0000000000000
diff --git a/pandas/types/common.py b/pandas/types/common.py
deleted file mode 100644
index a125c27d04596..0000000000000
--- a/pandas/types/common.py
+++ /dev/null
@@ -1,8 +0,0 @@
-import warnings
-
-warnings.warn("pandas.types.common is deprecated and will be "
-              "removed in a future version, import "
-              "from pandas.api.types",
-              DeprecationWarning, stacklevel=3)
-
-from pandas.core.dtypes.common import *  # noqa
diff --git a/pandas/types/concat.py b/pandas/types/concat.py
deleted file mode 100644
index 477156b38d56d..0000000000000
--- a/pandas/types/concat.py
+++ /dev/null
@@ -1,11 +0,0 @@
-import warnings
-
-
-def union_categoricals(to_union, sort_categories=False, ignore_order=False):
-    warnings.warn("pandas.types.concat.union_categoricals is "
-                  "deprecated and will be removed in a future version.\n"
-                  "use pandas.api.types.union_categoricals",
-                  FutureWarning, stacklevel=2)
-    from pandas.api.types import union_categoricals
-    return union_categoricals(
-        to_union, sort_categories=sort_categories, ignore_order=ignore_order)
diff --git a/pandas/util/decorators.py b/pandas/util/decorators.py
deleted file mode 100644
index 54bb834e829f3..0000000000000
--- a/pandas/util/decorators.py
+++ /dev/null
@@ -1,8 +0,0 @@
-import warnings
-
-warnings.warn("pandas.util.decorators is deprecated and will be "
-              "removed in a future version, import "
-              "from pandas.util",
-              DeprecationWarning, stacklevel=3)
-
-from pandas.util._decorators import *  # noqa