diff --git a/newsfragments/5947.added.md b/newsfragments/5947.added.md
new file mode 100644
index 00000000000..16480541f22
--- /dev/null
+++ b/newsfragments/5947.added.md
@@ -0,0 +1,11 @@
+Added the following functions:
+
+* pub fn PyDict_SetDefault(mp: *mut PyObject, key: *mut PyObject, default_obj: *mut PyObject) -> *mut PyObject;
+* pub fn PyDict_SetDefaultRef(mp: *mut PyObject, key: *mut PyObject, default_obj: *mut PyObject, result: **mut PyObject) -> c_int;
+* pub fn PyDict_ContainsString(mp: *mut PyObject, key: *const char) -> c_int;
+* pub fn PyDict_Pop(dict: *mut PyObject, key: *mut PyObject, result: **mut PyObject) -> c_int;
+* pub fn PyDict_PopString(dict: *mut PyObject, key: *const c_char, result: **mut PyObject) -> c_int;
+* pub fn PyDict_ClearWatcher(watcher_id: c_int) -> c_int;
+* pub fn PyDict_Watch(watcher_id: c_int, dict: *mut PyObject) -> c_int;
+* pub fn PyDict_Unwatch(watcher_id: c_int, dict: *mut PyObject) -> c_int;
+* pub fn PyFrozenDict_New(iterable: *mut PyObject) -> *mut PyObject;
diff --git a/pyo3-ffi/src/cpython/dictobject.rs b/pyo3-ffi/src/cpython/dictobject.rs
index 4c93f068e2b..cf5be14f3ee 100644
--- a/pyo3-ffi/src/cpython/dictobject.rs
+++ b/pyo3-ffi/src/cpython/dictobject.rs
@@ -3,6 +3,11 @@ use crate::object::*;
 #[cfg(not(any(PyPy, GraalPy)))]
 use crate::pyport::Py_ssize_t;
 
+#[cfg(all(not(PyPy), Py_3_13))]
+use std::ffi::c_char;
+#[cfg(all(not(PyPy), Py_3_12))]
+use std::ffi::c_int;
+
 #[cfg(not(PyPy))]
 opaque_struct!(pub PyDictKeysObject);
 
@@ -39,18 +44,52 @@ pub struct PyDictObject {
     _tmpkeys: *mut PyObject,
 }
 
+extern_libpython! {
+    #[cfg(Py_3_15)]
+    pub fn PyFrozenDict_New(iterable: *mut PyObject) -> *mut PyObject;
+}
+
 // skipped private _PyDict_GetItem_KnownHash
 // skipped private _PyDict_GetItemStringWithError
 
-// skipped PyDict_SetDefault
+extern_libpython! {
+    #[cfg(not(GraalPy))]
+    pub fn PyDict_SetDefault(
+        mp: *mut PyObject,
+        key: *mut PyObject,
+        default_obj: *mut PyObject,
+    ) -> *mut PyObject;
+    /*
+    #[cfg(all(Py_3_13, not(Py_3_15)))]
+    pub fn PyDict_SetDefaultRef(
+        mp: *mut PyObject,
+        key: *mut PyObject,
+        default_obj: *mut PyObject,
+        result: *mut *mut PyObject,
+    ) -> c_int;
+    */
+}
 
 // skipped PyDict_GET_SIZE
-// skipped PyDict_ContainsString
+
+extern_libpython! {
+    #[cfg(Py_3_13)]
+    pub fn PyDict_ContainsString(mp: *mut PyObject, key: *const c_char) -> c_int;
+}
 
 // skipped private _PyDict_NewPresized
 
-// skipped PyDict_Pop
-// skipped PyDict_PopString
+extern_libpython! {
+    #[cfg(Py_3_13)]
+    pub fn PyDict_Pop(dict: *mut PyObject, key: *mut PyObject, result: *mut *mut PyObject)
+        -> c_int;
+    #[cfg(Py_3_13)]
+    pub fn PyDict_PopString(
+        dict: *mut PyObject,
+        key: *const c_char,
+        result: *mut *mut PyObject,
+    ) -> c_int;
+}
 
 // skipped private _PyDict_Pop
 
@@ -60,7 +99,14 @@ pub struct PyDictObject {
 // skipped PyDict_WatchCallback
 
 // skipped PyDict_AddWatcher
-// skipped PyDict_ClearWatcher
 
-// skipped PyDict_Watch
-// skipped PyDict_Unwatch
+extern_libpython! {
+    #[cfg(Py_3_12)]
+    pub fn PyDict_ClearWatcher(watcher_id: c_int) -> c_int;
+    #[cfg(Py_3_12)]
+    #[cfg(not(GraalPy))]
+    pub fn PyDict_Watch(watcher_id: c_int, dict: *mut PyObject) -> c_int;
+    #[cfg(Py_3_12)]
+    #[cfg(not(GraalPy))]
+    pub fn PyDict_Unwatch(watcher_id: c_int, dict: *mut PyObject) -> c_int;
+}