diff --git a/doc/lispref/processes.texi b/doc/lispref/processes.texi
index 79ef959ae65..93ac5a6aa7d 100644
--- a/doc/lispref/processes.texi
+++ b/doc/lispref/processes.texi
@@ -3090,6 +3090,13 @@ Network Options
 may be a period of time after the last use of that port (by any
 process on the host) where it is not possible to make a new server on
 that port.
+
+@item :nodelay @var{nodelay-flag}
+If @var{nodelay-flag} is non-@code{nil}, the @code{TCP_NODELAY} option
+is enabled on the socket. This disables the Nagle algorithm, meaning
+that network segments are sent as soon as possible, even when they
+contain little data. This reduces network latency on the network
+connection, but can lead to many small packets being sent.
 @end table
 
 @defun set-network-process-option process option value &optional no-error
diff --git a/lisp/emacs-lisp/bytecomp.el b/lisp/emacs-lisp/bytecomp.el
index f058fc48cc7..07eb4690fce 100644
--- a/lisp/emacs-lisp/bytecomp.el
+++ b/lisp/emacs-lisp/bytecomp.el
@@ -6049,8 +6049,8 @@ bytecomp--check-keyword-args
             :buffer :host :service :type :family :local :remote :coding
             :nowait :noquery :stop :filter :filter-multibyte :sentinel
             :log :plist :tls-parameters :server :broadcast :dontroute
-            :keepalive :linger :oobinline :priority :reuseaddr :bindtodevice
-            :use-external-socket)
+            :keepalive :linger :oobinline :priority :reuseaddr :nodelay
+            :bindtodevice :use-external-socket)
           '(:name :service))))
 
 (provide 'byte-compile)
diff --git a/src/process.c b/src/process.c
index b71ba3daf2d..0b994d6c5b7 100644
--- a/src/process.c
+++ b/src/process.c
@@ -38,6 +38,7 @@ Copyright (C) 1985-1988, 1993-1996, 1998-1999, 2001-2024 Free Software
 #include <sys/socket.h>
 #include <netdb.h>
 #include <netinet/in.h>
+#include <netinet/tcp.h>
 #include <arpa/inet.h>
 
 #else
@@ -2860,6 +2861,9 @@ DEFUN ("set-process-datagram-address", Fset_process_datagram_address, Sset_proce
 #endif
 #ifdef SO_REUSEADDR
     { ":reuseaddr", SOL_SOCKET, SO_REUSEADDR, SOPT_BOOL, OPIX_REUSEADDR },
+#endif
+#ifdef TCP_NODELAY
+    { ":nodelay", IPPROTO_TCP, TCP_NODELAY, SOPT_BOOL, OPIX_MISC },
 #endif
     { 0, 0, 0, SOPT_UNKNOWN, OPIX_NONE }
   };