diff --git a/Doc/library/fcntl.rst b/Doc/library/fcntl.rst
index 7bd64e43dd5bfe..30e0fdaa311924 100644
--- a/Doc/library/fcntl.rst
+++ b/Doc/library/fcntl.rst
@@ -79,6 +79,10 @@ descriptor.
    On macOS and NetBSD, the :mod:`!fcntl` module exposes the ``F_GETNOSIGPIPE``
    and ``F_SETNOSIGPIPE`` constant.
 
+.. versionchanged:: next
+   On Linux >= 6.1, the :mod:`!fcntl` module exposes the ``F_DUPFD_QUERY``
+   to query a file descriptor pointing to the same file.
+
 The module defines the following functions:
 
 
diff --git a/Misc/NEWS.d/next/Library/2024-11-29-13-06-52.gh-issue-127385.PErcyB.rst b/Misc/NEWS.d/next/Library/2024-11-29-13-06-52.gh-issue-127385.PErcyB.rst
new file mode 100644
index 00000000000000..3770d586ba4620
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2024-11-29-13-06-52.gh-issue-127385.PErcyB.rst
@@ -0,0 +1 @@
+Add the ``F_DUPFD_QUERY`` constant to the :mod:`fcntl` module.
diff --git a/Modules/fcntlmodule.c b/Modules/fcntlmodule.c
index 90ebfd7e99a777..72cdc34a31d2f7 100644
--- a/Modules/fcntlmodule.c
+++ b/Modules/fcntlmodule.c
@@ -565,6 +565,9 @@ all_ins(PyObject* m)
 #ifdef F_NOTIFY
     if (PyModule_AddIntMacro(m, F_NOTIFY)) return -1;
 #endif
+#ifdef F_DUPFD_QUERY
+    if (PyModule_AddIntMacro(m, F_DUPFD_QUERY)) return -1;
+#endif
 /* Old BSD flock(). */
 #ifdef F_EXLCK
     if (PyModule_AddIntMacro(m, F_EXLCK)) return -1;