diff -Naur a/src/gevent/libev/corecext.pyx b/src/gevent/libev/corecext.pyx
--- a/src/gevent/libev/corecext.pyx	2021-12-12 02:26:48.000000000 +0600
+++ b/src/gevent/libev/corecext.pyx	2024-01-08 18:35:33.198273213 +0600
@@ -111,7 +111,6 @@
 BACKEND_KQUEUE = libev.EVBACKEND_KQUEUE
 BACKEND_DEVPOLL = libev.EVBACKEND_DEVPOLL
 BACKEND_PORT = libev.EVBACKEND_PORT
-BACKEND_LINUXAIO = libev.EVBACKEND_LINUXAIO
 BACKEND_IOURING = libev.EVBACKEND_IOURING
 
 
@@ -147,7 +146,6 @@
     (libev.EVBACKEND_PORT, 'port'),
     (libev.EVBACKEND_KQUEUE, 'kqueue'),
     (libev.EVBACKEND_IOURING, 'linux_iouring'),
-    (libev.EVBACKEND_LINUXAIO, "linux_aio"),
     (libev.EVBACKEND_EPOLL, 'epoll'),
     (libev.EVBACKEND_POLL, 'poll'),
     (libev.EVBACKEND_SELECT, 'select'),
diff -Naur a/src/gevent/libev/_corecffi_cdef.c b/src/gevent/libev/_corecffi_cdef.c
--- a/src/gevent/libev/_corecffi_cdef.c	2021-12-12 02:26:48.000000000 +0600
+++ b/src/gevent/libev/_corecffi_cdef.c	2024-01-08 18:40:37.142283416 +0600
@@ -43,7 +43,6 @@
 #define EVBACKEND_KQUEUE ...
 #define EVBACKEND_DEVPOLL ...
 #define EVBACKEND_PORT ...
-#define EVBACKEND_LINUXAIO ...
 #define EVBACKEND_IOURING ...
 /* #define EVBACKEND_IOCP ... */
 
diff -Naur a/src/gevent/libev/corecffi.py b/src/gevent/libev/corecffi.py
--- a/src/gevent/libev/corecffi.py	2021-12-12 02:26:48.000000000 +0600
+++ b/src/gevent/libev/corecffi.py	2024-01-08 18:40:15.966422046 +0600
@@ -137,7 +137,6 @@
     (libev.EVBACKEND_PORT, 'port'),
     (libev.EVBACKEND_KQUEUE, 'kqueue'),
     (libev.EVBACKEND_IOURING, 'linux_iouring'),
-    (libev.EVBACKEND_LINUXAIO, "linux_aio"),
     (libev.EVBACKEND_EPOLL, 'epoll'),
     (libev.EVBACKEND_POLL, 'poll'),
     (libev.EVBACKEND_SELECT, 'select'),
diff -Naur a/src/gevent/libev/libev.pxd b/src/gevent/libev/libev.pxd
--- a/src/gevent/libev/libev.pxd	2021-12-12 02:26:48.000000000 +0600
+++ b/src/gevent/libev/libev.pxd	2024-01-08 18:39:30.229721465 +0600
@@ -75,7 +75,6 @@
     int EVBACKEND_PORT
     int EVBACKEND_IOCP
     int EVBACKEND_IOURING
-    int EVBACKEND_LINUXAIO
     int EVBACKEND_ALL
     int EVBACKEND_MASK
 
diff -Naur a/src/gevent/tests/test__close_backend_fd.py b/src/gevent/tests/test__close_backend_fd.py
--- a/src/gevent/tests/test__close_backend_fd.py	2021-12-12 02:26:49.000000000 +0600
+++ b/src/gevent/tests/test__close_backend_fd.py	2024-01-08 18:41:15.190034333 +0600
@@ -27,7 +27,6 @@
     BACKENDS_THAT_SUCCEED_WHEN_FD_CLOSED = (
         'kqueue',
         'epoll',
-        'linux_aio',
         'linux_iouring',
     )