Field Marshal John Griffin Griffin, 4th Baron Howard de Walden, 1st Baron Braybrooke, KB, of Audley End in Essex, was a British nobleman and soldier. He served as a junior officer with the Pragmatic Army in the Netherlands and Germany during the War of the Austrian Succession. After changing his surname to Griffin in 1749, he commanded a brigade of at least four battalions at the Battle of Corbach in July 1760 during the Seven Years' War. He also commanded a brigade at the Battle of Warburg and was wounded at the Battle of Kloster Kampen.