diff --git a/Include/internal/pycore_call.h b/Include/internal/pycore_call.h
index 506da06f708..4f4cf02f64b 100644
--- a/Include/internal/pycore_call.h
+++ b/Include/internal/pycore_call.h
@@ -64,39 +64,6 @@ PyAPI_FUNC(PyObject*) _PyObject_CallMethod(
     PyObject *name,
     const char *format, ...);
 
-extern PyObject* _PyObject_CallMethodIdObjArgs(
-    PyObject *obj,
-    _Py_Identifier *name,
-    ...);
-
-static inline PyObject *
-_PyObject_VectorcallMethodId(
-    _Py_Identifier *name, PyObject *const *args,
-    size_t nargsf, PyObject *kwnames)
-{
-    PyObject *oname = _PyUnicode_FromId(name); /* borrowed */
-    if (!oname) {
-        return _Py_NULL;
-    }
-    return PyObject_VectorcallMethod(oname, args, nargsf, kwnames);
-}
-
-static inline PyObject *
-_PyObject_CallMethodIdNoArgs(PyObject *self, _Py_Identifier *name)
-{
-    size_t nargsf = 1 | PY_VECTORCALL_ARGUMENTS_OFFSET;
-    return _PyObject_VectorcallMethodId(name, &self, nargsf, _Py_NULL);
-}
-
-static inline PyObject *
-_PyObject_CallMethodIdOneArg(PyObject *self, _Py_Identifier *name, PyObject *arg)
-{
-    PyObject *args[2] = {self, arg};
-    size_t nargsf = 2 | PY_VECTORCALL_ARGUMENTS_OFFSET;
-    assert(arg != NULL);
-    return _PyObject_VectorcallMethodId(name, args, nargsf, _Py_NULL);
-}
-
 
 /* === Vectorcall protocol (PEP 590) ============================= */
 
diff --git a/Include/internal/pycore_ceval.h b/Include/internal/pycore_ceval.h
index 9d81833a234..762d8ef067e 100644
--- a/Include/internal/pycore_ceval.h
+++ b/Include/internal/pycore_ceval.h
@@ -33,8 +33,6 @@ extern int _PyEval_SetOpcodeTrace(PyFrameObject *f, bool enable);
 // Export for 'array' shared extension
 PyAPI_FUNC(PyObject*) _PyEval_GetBuiltin(PyObject *);
 
-extern PyObject* _PyEval_GetBuiltinId(_Py_Identifier *);
-
 extern void _PyEval_SetSwitchInterval(unsigned long microseconds);
 extern unsigned long _PyEval_GetSwitchInterval(void);
 
diff --git a/Include/internal/pycore_dict.h b/Include/internal/pycore_dict.h
index b8fe360321d..1193f496da1 100644
--- a/Include/internal/pycore_dict.h
+++ b/Include/internal/pycore_dict.h
@@ -36,13 +36,6 @@ extern int _PyDict_DelItem_KnownHash_LockHeld(PyObject *mp, PyObject *key,
 
 extern int _PyDict_Contains_KnownHash(PyObject *, PyObject *, Py_hash_t);
 
-// "Id" variants
-extern PyObject* _PyDict_GetItemIdWithError(PyObject *dp,
-                                            _Py_Identifier *key);
-extern int _PyDict_ContainsId(PyObject *, _Py_Identifier *);
-extern int _PyDict_SetItemId(PyObject *dp, _Py_Identifier *key, PyObject *item);
-extern int _PyDict_DelItemId(PyObject *mp, _Py_Identifier *key);
-
 extern int _PyDict_Next(
     PyObject *mp, Py_ssize_t *pos, PyObject **key, PyObject **value, Py_hash_t *hash);
 
diff --git a/Include/internal/pycore_unicodeobject.h b/Include/internal/pycore_unicodeobject.h
index e7ca65a56b6..97dda73f9b5 100644
--- a/Include/internal/pycore_unicodeobject.h
+++ b/Include/internal/pycore_unicodeobject.h
@@ -307,14 +307,6 @@ PyAPI_FUNC(PyObject*) _PyUnicode_JoinArray(
     Py_ssize_t seqlen
     );
 
-/* Test whether a unicode is equal to ASCII identifier.  Return 1 if true,
-   0 otherwise.  The right argument must be ASCII identifier.
-   Any error occurs inside will be cleared before return. */
-extern int _PyUnicode_EqualToASCIIId(
-    PyObject *left,             /* Left string */
-    _Py_Identifier *right       /* Right identifier */
-    );
-
 // Test whether a unicode is equal to ASCII string.  Return 1 if true,
 // 0 otherwise.  The right argument must be ASCII-encoded string.
 // Any error occurs inside will be cleared before return.
diff --git a/Objects/call.c b/Objects/call.c
index bd8617825b5..c69015abfb3 100644
--- a/Objects/call.c
+++ b/Objects/call.c
@@ -891,39 +891,6 @@ PyObject_CallMethodObjArgs(PyObject *obj, PyObject *name, ...)
 }
 
 
-PyObject *
-_PyObject_CallMethodIdObjArgs(PyObject *obj, _Py_Identifier *name, ...)
-{
-    PyThreadState *tstate = _PyThreadState_GET();
-    if (obj == NULL || name == NULL) {
-        return null_error(tstate);
-    }
-
-    PyObject *oname = _PyUnicode_FromId(name); /* borrowed */
-    if (!oname) {
-        return NULL;
-    }
-    _PyCStackRef method;
-    _PyThreadState_PushCStackRef(tstate, &method);
-    int is_method = _PyObject_GetMethodStackRef(tstate, obj, oname, &method.ref);
-    if (PyStackRef_IsNull(method.ref)) {
-        _PyThreadState_PopCStackRef(tstate, &method);
-        return NULL;
-    }
-    PyObject *callable = PyStackRef_AsPyObjectBorrow(method.ref);
-
-    obj = is_method ? obj : NULL;
-
-    va_list vargs;
-    va_start(vargs, name);
-    PyObject *result = object_vacall(tstate, obj, callable, vargs);
-    va_end(vargs);
-
-    _PyThreadState_PopCStackRef(tstate, &method);
-    return result;
-}
-
-
 PyObject *
 PyObject_CallFunctionObjArgs(PyObject *callable, ...)
 {
diff --git a/Objects/dictobject.c b/Objects/dictobject.c
index 14de21f3c67..ee1c173ae4a 100644
--- a/Objects/dictobject.c
+++ b/Objects/dictobject.c
@@ -2527,18 +2527,6 @@ _PyDict_GetItemWithError(PyObject *dp, PyObject *kv)
     return _PyDict_GetItem_KnownHash(dp, kv, hash);  // borrowed reference
 }
 
-PyObject *
-_PyDict_GetItemIdWithError(PyObject *dp, _Py_Identifier *key)
-{
-    PyObject *kv;
-    kv = _PyUnicode_FromId(key); /* borrowed */
-    if (kv == NULL)
-        return NULL;
-    Py_hash_t hash = unicode_get_hash(kv);
-    assert (hash != -1);  /* interned strings have their hash value initialised */
-    return _PyDict_GetItem_KnownHash(dp, kv, hash);  // borrowed reference
-}
-
 PyObject *
 _PyDict_GetItemStringWithError(PyObject *v, const char *key)
 {
@@ -4845,16 +4833,6 @@ _PyDict_Contains_KnownHash(PyObject *op, PyObject *key, Py_hash_t hash)
     return 0;
 }
 
-int
-_PyDict_ContainsId(PyObject *op, _Py_Identifier *key)
-{
-    PyObject *kv = _PyUnicode_FromId(key); /* borrowed */
-    if (kv == NULL) {
-        return -1;
-    }
-    return PyDict_Contains(op, kv);
-}
-
 /* Hack to implement "key in dict" */
 static PySequenceMethods dict_as_sequence = {
     0,                          /* sq_length */
@@ -5035,16 +5013,6 @@ PyDict_GetItemStringRef(PyObject *v, const char *key, PyObject **result)
     return res;
 }
 
-int
-_PyDict_SetItemId(PyObject *v, _Py_Identifier *key, PyObject *item)
-{
-    PyObject *kv;
-    kv = _PyUnicode_FromId(key); /* borrowed */
-    if (kv == NULL)
-        return -1;
-    return PyDict_SetItem(v, kv, item);
-}
-
 int
 PyDict_SetItemString(PyObject *v, const char *key, PyObject *item)
 {
@@ -5060,15 +5028,6 @@ PyDict_SetItemString(PyObject *v, const char *key, PyObject *item)
     return err;
 }
 
-int
-_PyDict_DelItemId(PyObject *v, _Py_Identifier *key)
-{
-    PyObject *kv = _PyUnicode_FromId(key); /* borrowed */
-    if (kv == NULL)
-        return -1;
-    return PyDict_DelItem(v, kv);
-}
-
 int
 PyDict_DelItemString(PyObject *v, const char *key)
 {
diff --git a/Objects/odictobject.c b/Objects/odictobject.c
index 45d2ea0203a..25928028919 100644
--- a/Objects/odictobject.c
+++ b/Objects/odictobject.c
@@ -223,7 +223,6 @@ PyDict_DelItem                           PyMapping_DelItem
 PyDict_DelItemString                     PyMapping_DelItemString
 PyDict_GetItem                           -
 PyDict_GetItemWithError                  PyObject_GetItem
-_PyDict_GetItemIdWithError               -
 PyDict_GetItemString                     PyMapping_GetItemString
 PyDict_Items                             PyMapping_Items
 PyDict_Keys                              PyMapping_Keys
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 7f9f75126a9..f737a885f19 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -11194,47 +11194,6 @@ _PyUnicode_EqualToASCIIString(PyObject *unicode, const char *str)
            memcmp(PyUnicode_1BYTE_DATA(unicode), str, len) == 0;
 }
 
-int
-_PyUnicode_EqualToASCIIId(PyObject *left, _Py_Identifier *right)
-{
-    PyObject *right_uni;
-
-    assert(_PyUnicode_CHECK(left));
-    assert(right->string);
-#ifndef NDEBUG
-    for (const char *p = right->string; *p; p++) {
-        assert((unsigned char)*p < 128);
-    }
-#endif
-
-    if (!PyUnicode_IS_ASCII(left))
-        return 0;
-
-    right_uni = _PyUnicode_FromId(right);       /* borrowed */
-    if (right_uni == NULL) {
-        /* memory error or bad data */
-        PyErr_Clear();
-        return _PyUnicode_EqualToASCIIString(left, right->string);
-    }
-
-    if (left == right_uni)
-        return 1;
-
-    assert(PyUnicode_CHECK_INTERNED(right_uni));
-    if (PyUnicode_CHECK_INTERNED(left)) {
-        return 0;
-    }
-
-    Py_hash_t right_hash = PyUnicode_HASH(right_uni);
-    assert(right_hash != -1);
-    Py_hash_t hash = PyUnicode_HASH(left);
-    if (hash != -1 && hash != right_hash) {
-        return 0;
-    }
-
-    return unicode_eq(left, right_uni);
-}
-
 PyObject *
 PyUnicode_RichCompare(PyObject *left, PyObject *right, int op)
 {
diff --git a/Python/ceval.c b/Python/ceval.c
index 5381cd826df..39fb38b7307 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -2828,12 +2828,6 @@ _PyEval_GetBuiltin(PyObject *name)
     return attr;
 }
 
-PyObject *
-_PyEval_GetBuiltinId(_Py_Identifier *name)
-{
-    return _PyEval_GetBuiltin(_PyUnicode_FromId(name));
-}
-
 PyObject *
 PyEval_GetLocals(void)
 {