diff --git a/Doc/data/stable_abi.dat b/Doc/data/stable_abi.dat
index 7fb002cd80369b..9a61ddc39a353f 100644
--- a/Doc/data/stable_abi.dat
+++ b/Doc/data/stable_abi.dat
@@ -490,6 +490,8 @@ function,PyObject_Calloc,3.7,,
 function,PyObject_CheckBuffer,3.11,,
 function,PyObject_ClearWeakRefs,3.2,,
 function,PyObject_CopyData,3.11,,
+function,PyObject_DelAttr,3.13,,
+function,PyObject_DelAttrString,3.13,,
 function,PyObject_DelItem,3.2,,
 function,PyObject_DelItemString,3.2,,
 function,PyObject_Dir,3.2,,
diff --git a/Include/abstract.h b/Include/abstract.h
index 016ace9bc89e96..c84d2c704e9605 100644
--- a/Include/abstract.h
+++ b/Include/abstract.h
@@ -80,7 +80,7 @@ extern "C" {
 
    This is the equivalent of the Python statement o.attr_name=v. */
 
-/* Implemented as a macro:
+/* Implemented elsewhere:
 
    int PyObject_DelAttrString(PyObject *o, const char *attr_name);
 
@@ -88,17 +88,15 @@ extern "C" {
    -1 on failure.
 
    This is the equivalent of the Python statement: del o.attr_name. */
-#define PyObject_DelAttrString(O, A) PyObject_SetAttrString((O), (A), NULL)
 
 
-/* Implemented as a macro:
+/* Implemented elsewhere:
 
    int PyObject_DelAttr(PyObject *o, PyObject *attr_name);
 
    Delete attribute named attr_name, for object o. Returns -1
    on failure.  This is the equivalent of the Python
    statement: del o.attr_name. */
-#define  PyObject_DelAttr(O, A) PyObject_SetAttr((O), (A), NULL)
 
 
 /* Implemented elsewhere:
diff --git a/Include/object.h b/Include/object.h
index 3ef64511399c66..dccab07e5f2c6f 100644
--- a/Include/object.h
+++ b/Include/object.h
@@ -391,9 +391,11 @@ PyAPI_FUNC(PyObject *) PyObject_RichCompare(PyObject *, PyObject *, int);
 PyAPI_FUNC(int) PyObject_RichCompareBool(PyObject *, PyObject *, int);
 PyAPI_FUNC(PyObject *) PyObject_GetAttrString(PyObject *, const char *);
 PyAPI_FUNC(int) PyObject_SetAttrString(PyObject *, const char *, PyObject *);
+PyAPI_FUNC(int) PyObject_DelAttrString(PyObject *v, const char *name);
 PyAPI_FUNC(int) PyObject_HasAttrString(PyObject *, const char *);
 PyAPI_FUNC(PyObject *) PyObject_GetAttr(PyObject *, PyObject *);
 PyAPI_FUNC(int) PyObject_SetAttr(PyObject *, PyObject *, PyObject *);
+PyAPI_FUNC(int) PyObject_DelAttr(PyObject *v, PyObject *name);
 PyAPI_FUNC(int) PyObject_HasAttr(PyObject *, PyObject *);
 PyAPI_FUNC(PyObject *) PyObject_SelfIter(PyObject *);
 PyAPI_FUNC(PyObject *) PyObject_GenericGetAttr(PyObject *, PyObject *);
diff --git a/Lib/test/test_stable_abi_ctypes.py b/Lib/test/test_stable_abi_ctypes.py
index 038c978e7bbd02..20bc2624c81361 100644
--- a/Lib/test/test_stable_abi_ctypes.py
+++ b/Lib/test/test_stable_abi_ctypes.py
@@ -509,6 +509,8 @@ def test_windows_feature_macros(self):
     "PyObject_CheckReadBuffer",
     "PyObject_ClearWeakRefs",
     "PyObject_CopyData",
+    "PyObject_DelAttr",
+    "PyObject_DelAttrString",
     "PyObject_DelItem",
     "PyObject_DelItemString",
     "PyObject_Dir",
diff --git a/Misc/NEWS.d/next/C API/2023-07-11-01-07-39.gh-issue-106572.y1b35X.rst b/Misc/NEWS.d/next/C API/2023-07-11-01-07-39.gh-issue-106572.y1b35X.rst
new file mode 100644
index 00000000000000..140e9fe7b9abf6
--- /dev/null
+++ b/Misc/NEWS.d/next/C API/2023-07-11-01-07-39.gh-issue-106572.y1b35X.rst	
@@ -0,0 +1,2 @@
+Convert :c:func:`PyObject_DelAttr` and :c:func:`PyObject_DelAttrString`
+macros to functions. Patch by Victor Stinner.
diff --git a/Misc/stable_abi.toml b/Misc/stable_abi.toml
index bc7259f11816f3..c61fedf8390e28 100644
--- a/Misc/stable_abi.toml
+++ b/Misc/stable_abi.toml
@@ -2432,3 +2432,7 @@
     added = '3.13'
 [function.PyWeakref_GetRef]
     added = '3.13'
+[function.PyObject_DelAttr]
+    added = '3.13'
+[function.PyObject_DelAttrString]
+    added = '3.13'
diff --git a/Objects/object.c b/Objects/object.c
index c27b13e9e0c31a..540ba5d07427cd 100644
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -942,6 +942,12 @@ PyObject_SetAttrString(PyObject *v, const char *name, PyObject *w)
     return res;
 }
 
+int
+PyObject_DelAttrString(PyObject *v, const char *name)
+{
+    return PyObject_SetAttrString(v, name, NULL);
+}
+
 int
 _PyObject_IsAbstract(PyObject *obj)
 {
@@ -1185,6 +1191,12 @@ PyObject_SetAttr(PyObject *v, PyObject *name, PyObject *value)
     return -1;
 }
 
+int
+PyObject_DelAttr(PyObject *v, PyObject *name)
+{
+    return PyObject_SetAttr(v, name, NULL);
+}
+
 PyObject **
 _PyObject_ComputedDictPointer(PyObject *obj)
 {
diff --git a/PC/python3dll.c b/PC/python3dll.c
index 65bdf326ffbc7f..a7173911c7c1e8 100755
--- a/PC/python3dll.c
+++ b/PC/python3dll.c
@@ -447,6 +447,8 @@ EXPORT_FUNC(PyObject_CheckBuffer)
 EXPORT_FUNC(PyObject_CheckReadBuffer)
 EXPORT_FUNC(PyObject_ClearWeakRefs)
 EXPORT_FUNC(PyObject_CopyData)
+EXPORT_FUNC(PyObject_DelAttr)
+EXPORT_FUNC(PyObject_DelAttrString)
 EXPORT_FUNC(PyObject_DelItem)
 EXPORT_FUNC(PyObject_DelItemString)
 EXPORT_FUNC(PyObject_Dir)
diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index 49efafc07f4245..20a86fc6f583d3 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -1567,8 +1567,9 @@ static PyObject *
 builtin_delattr_impl(PyObject *module, PyObject *obj, PyObject *name)
 /*[clinic end generated code: output=85134bc58dff79fa input=164865623abe7216]*/
 {
-    if (PyObject_SetAttr(obj, name, (PyObject *)NULL) != 0)
+    if (PyObject_DelAttr(obj, name) < 0) {
         return NULL;
+    }
     Py_RETURN_NONE;
 }
 
diff --git a/Python/bytecodes.c b/Python/bytecodes.c
index 0848bbfd203ec4..88444293aa228b 100644
--- a/Python/bytecodes.c
+++ b/Python/bytecodes.c
@@ -1240,7 +1240,7 @@ dummy_func(
 
         inst(DELETE_ATTR, (owner --)) {
             PyObject *name = GETITEM(FRAME_CO_NAMES, oparg);
-            int err = PyObject_SetAttr(owner, name, (PyObject *)NULL);
+            int err = PyObject_DelAttr(owner, name);
             DECREF_INPUTS();
             ERROR_IF(err, error);
         }
diff --git a/Python/executor_cases.c.h b/Python/executor_cases.c.h
index 0ef752249ccb76..030d7ac15ef066 100644
--- a/Python/executor_cases.c.h
+++ b/Python/executor_cases.c.h
@@ -1018,7 +1018,7 @@
             PyObject *owner = stack_pointer[-1];
             #line 1242 "Python/bytecodes.c"
             PyObject *name = GETITEM(FRAME_CO_NAMES, oparg);
-            int err = PyObject_SetAttr(owner, name, (PyObject *)NULL);
+            int err = PyObject_DelAttr(owner, name);
             #line 1023 "Python/executor_cases.c.h"
             Py_DECREF(owner);
             #line 1245 "Python/bytecodes.c"
@@ -1642,7 +1642,7 @@
             PyObject *owner = stack_pointer[-1];
             PyObject *res2 = NULL;
             PyObject *res;
-            #line 1815 "Python/bytecodes.c"
+            #line 1817 "Python/bytecodes.c"
             #if ENABLE_SPECIALIZATION
             _PyAttrCache *cache = (_PyAttrCache *)next_instr;
             if (ADAPTIVE_COUNTER_IS_ZERO(cache->counter)) {
@@ -1678,7 +1678,7 @@
                     */
             #line 1680 "Python/executor_cases.c.h"
                     Py_DECREF(owner);
-            #line 1849 "Python/bytecodes.c"
+            #line 1851 "Python/bytecodes.c"
                     if (meth == NULL) goto pop_1_error;
                     res2 = NULL;
                     res = meth;
@@ -1689,7 +1689,7 @@
                 res = PyObject_GetAttr(owner, name);
             #line 1691 "Python/executor_cases.c.h"
                 Py_DECREF(owner);
-            #line 1858 "Python/bytecodes.c"
+            #line 1860 "Python/bytecodes.c"
                 if (res == NULL) goto pop_1_error;
             }
             #line 1696 "Python/executor_cases.c.h"
@@ -1704,7 +1704,7 @@
             PyObject *right = stack_pointer[-1];
             PyObject *left = stack_pointer[-2];
             PyObject *res;
-            #line 2091 "Python/bytecodes.c"
+            #line 2093 "Python/bytecodes.c"
             #if ENABLE_SPECIALIZATION
             _PyCompareOpCache *cache = (_PyCompareOpCache *)next_instr;
             if (ADAPTIVE_COUNTER_IS_ZERO(cache->counter)) {
@@ -1720,7 +1720,7 @@
             #line 1721 "Python/executor_cases.c.h"
             Py_DECREF(left);
             Py_DECREF(right);
-            #line 2104 "Python/bytecodes.c"
+            #line 2106 "Python/bytecodes.c"
             if (res == NULL) goto pop_2_error;
             if (oparg & 16) {
                 int res_bool = PyObject_IsTrue(res);
@@ -2237,7 +2237,7 @@
             PyObject *rhs = stack_pointer[-1];
             PyObject *lhs = stack_pointer[-2];
             PyObject *res;
-            #line 3537 "Python/bytecodes.c"
+            #line 3568 "Python/bytecodes.c"
             #if ENABLE_SPECIALIZATION
             _PyBinaryOpCache *cache = (_PyBinaryOpCache *)next_instr;
             if (ADAPTIVE_COUNTER_IS_ZERO(cache->counter)) {
@@ -2255,7 +2255,7 @@
             #line 2256 "Python/executor_cases.c.h"
             Py_DECREF(lhs);
             Py_DECREF(rhs);
-            #line 3552 "Python/bytecodes.c"
+            #line 3583 "Python/bytecodes.c"
             if (res == NULL) goto pop_2_error;
             #line 2261 "Python/executor_cases.c.h"
             STACK_SHRINK(1);
diff --git a/Python/generated_cases.c.h b/Python/generated_cases.c.h
index 11823cf9cd293c..ecbf8ee59da1da 100644
--- a/Python/generated_cases.c.h
+++ b/Python/generated_cases.c.h
@@ -1696,7 +1696,7 @@
             PyObject *owner = stack_pointer[-1];
             #line 1242 "Python/bytecodes.c"
             PyObject *name = GETITEM(FRAME_CO_NAMES, oparg);
-            int err = PyObject_SetAttr(owner, name, (PyObject *)NULL);
+            int err = PyObject_DelAttr(owner, name);
             #line 1701 "Python/generated_cases.c.h"
             Py_DECREF(owner);
             #line 1245 "Python/bytecodes.c"