diff --git a/Doc/data/stable_abi.dat b/Doc/data/stable_abi.dat
index d582204..50207ac 100644
--- a/Doc/data/stable_abi.dat
+++ b/Doc/data/stable_abi.dat
@@ -783,7 +783,6 @@
 var,Py_FileSystemDefaultEncoding,3.2,
 function,Py_Finalize,3.2,
 function,Py_FinalizeEx,3.6,
-function,Py_FrozenMain,3.10,
 function,Py_GenericAlias,3.9,
 function,Py_GenericAliasType,3.9,
 function,Py_GetBuildInfo,3.2,
diff --git a/Doc/whatsnew/3.10.rst b/Doc/whatsnew/3.10.rst
index b83e756..96565c3 100644
--- a/Doc/whatsnew/3.10.rst
+++ b/Doc/whatsnew/3.10.rst
@@ -1926,6 +1926,10 @@
   instead.
   (Contributed by Victor Stinner and Erlend E. Aasland in :issue:`43908`.)
 
+* The undocumented function ``Py_FrozenMain`` has been removed from the
+  limited API. The function is mainly useful for custom builds of Python.
+  (Contributed by Petr Viktorin in :issue:`26241`)
+
 Deprecated
 ----------
 
diff --git a/Include/cpython/pylifecycle.h b/Include/cpython/pylifecycle.h
index 13f7a26..5faeb35 100644
--- a/Include/cpython/pylifecycle.h
+++ b/Include/cpython/pylifecycle.h
@@ -2,6 +2,10 @@
 #  error "this header file must not be included directly"
 #endif
 
+/* Py_FrozenMain is kept out of the Limited API until documented and present
+   in all builds of Python */
+PyAPI_FUNC(int) Py_FrozenMain(int argc, char **argv);
+
 /* Only used by applications that embed the interpreter and need to
  * override the standard encoding determination mechanism
  */
diff --git a/Include/pylifecycle.h b/Include/pylifecycle.h
index 783fcb4..2df7fe6 100644
--- a/Include/pylifecycle.h
+++ b/Include/pylifecycle.h
@@ -31,9 +31,6 @@ PyAPI_FUNC(void) _Py_NO_RETURN Py_Exit(int);
 
 /* Bootstrap __main__ (defined in Modules/main.c) */
 PyAPI_FUNC(int) Py_Main(int argc, wchar_t **argv);
-
-PyAPI_FUNC(int) Py_FrozenMain(int argc, char **argv);
-
 PyAPI_FUNC(int) Py_BytesMain(int argc, char **argv);
 
 /* In pathconfig.c */
diff --git a/Misc/NEWS.d/next/C API/2021-05-19-15-09-47.bpo-43795.WAHRxt.rst b/Misc/NEWS.d/next/C API/2021-05-19-15-09-47.bpo-43795.WAHRxt.rst
new file mode 100644
index 0000000..23db233
--- /dev/null
+++ b/Misc/NEWS.d/next/C API/2021-05-19-15-09-47.bpo-43795.WAHRxt.rst
@@ -0,0 +1 @@
+The undocumented function :c:func:`Py_FrozenMain` is removed from the Limited API.
diff --git a/Misc/stable_abi.txt b/Misc/stable_abi.txt
index a78bcb7..adee1a9 100644
--- a/Misc/stable_abi.txt
+++ b/Misc/stable_abi.txt
@@ -2079,8 +2079,6 @@
     added 3.10
 function PyType_GetModuleState
     added 3.10
-function Py_FrozenMain
-    added 3.10
 function PyFrame_GetLineNumber
     added 3.10
 function PyFrame_GetCode
diff --git a/PC/python3dll.c b/PC/python3dll.c
index 200d1d1..be85f27 100755
--- a/PC/python3dll.c
+++ b/PC/python3dll.c
@@ -55,7 +55,6 @@ EXPORT_FUNC(Py_Exit)
 EXPORT_FUNC(Py_FatalError)
 EXPORT_FUNC(Py_Finalize)
 EXPORT_FUNC(Py_FinalizeEx)
-EXPORT_FUNC(Py_FrozenMain)
 EXPORT_FUNC(Py_GenericAlias)
 EXPORT_FUNC(Py_GenericAliasType)
 EXPORT_FUNC(Py_GetArgcArgv)