diff --git a/CHANGES b/CHANGES
index 9d3edcb8969..72ee3bf644c 100644
--- a/CHANGES
+++ b/CHANGES
@@ -17,6 +17,7 @@ Incompatible changes
 * #11365: Remove support for the ``jsdump`` format in ``sphinx.search``.
 * #11366: Make ``locale`` a required argument to
   ``sphinx.util.i18n.format_date()``.
+* #11370: Remove deprecated ``sphinx.util.stemmer`` module.
 
 Deprecated
 ----------
diff --git a/sphinx/util/stemmer/__init__.py b/sphinx/util/stemmer/__init__.py
deleted file mode 100644
index 9f91ce59e35..00000000000
--- a/sphinx/util/stemmer/__init__.py
+++ /dev/null
@@ -1,62 +0,0 @@
-"""Word stemming utilities for Sphinx."""
-
-import warnings
-
-import snowballstemmer
-
-from sphinx.deprecation import RemovedInSphinx70Warning
-
-
-class PorterStemmer:
-    def __init__(self) -> None:
-        warnings.warn(f"{self.__class__.__name__} is deprecated, use "
-                      "snowballstemmer.stemmer('porter') instead.",
-                      RemovedInSphinx70Warning, stacklevel=2)
-        self.stemmer = snowballstemmer.stemmer('porter')
-
-    def stem(self, p: str, i: int, j: int) -> str:
-        warnings.warn(f"{self.__class__.__name__}.stem() is deprecated, use "
-                      "snowballstemmer.stemmer('porter').stemWord() instead.",
-                      RemovedInSphinx70Warning, stacklevel=2)
-        return self.stemmer.stemWord(p)
-
-
-class BaseStemmer:
-    def __init__(self) -> None:
-        warnings.warn(f"{self.__class__.__name__} is deprecated, use "
-                      "snowballstemmer.stemmer('porter') instead.",
-                      RemovedInSphinx70Warning, stacklevel=3)
-
-    def stem(self, word: str) -> str:
-        raise NotImplementedError
-
-
-class PyStemmer(BaseStemmer):
-    def __init__(self) -> None:
-        super().__init__()
-        self.stemmer = snowballstemmer.stemmer('porter')
-
-    def stem(self, word: str) -> str:
-        warnings.warn(f"{self.__class__.__name__}.stem() is deprecated, use "
-                      "snowballstemmer.stemmer('porter').stemWord() instead.",
-                      RemovedInSphinx70Warning, stacklevel=2)
-        return self.stemmer.stemWord(word)
-
-
-class StandardStemmer(BaseStemmer):
-    def __init__(self) -> None:
-        super().__init__()
-        self.stemmer = snowballstemmer.stemmer('porter')
-
-    def stem(self, word: str) -> str:
-        warnings.warn(f"{self.__class__.__name__}.stem() is deprecated, use "
-                      "snowballstemmer.stemmer('porter').stemWord() instead.",
-                      RemovedInSphinx70Warning, stacklevel=2)
-        return self.stemmer.stemWord(word)
-
-
-def get_stemmer() -> BaseStemmer:
-    warnings.warn("get_stemmer() is deprecated, use "
-                  "snowballstemmer.stemmer('porter') instead.",
-                  RemovedInSphinx70Warning, stacklevel=2)
-    return PyStemmer()