Sir John de Graham (died 22 July 1298) was a Scottish knight and soldier. He was born in the lands of Dundaff, Ayrshire, in the late 13th century. During the Wars of Scottish Independence he fought alongside Sir William Wallace. He was the most notable Scottish casualty at the Battle of Falkirk, fought on 22 July 1298, when the Scottish forces were routed by Edward I of England's stronger force of cavalry. The 15th-century poet Blind Harry wrote of "Schir Jhone the Grayme" in The Wallace. Wallace's lament at his death has been anthologised.