Robert fitzRoger (1247–1310), Lord of Warkworth, Clavering and Eure, was an English baron.

FitzRoger fought in the wars in Wales, Gascony and Scotland.

In the right of his mother, FitzRoger obtained the barony of Blythburgh, Suffolk.

FitzRoger fought with his son John at the battle of Falkirk in 1298 and the siege of Caerlaverock in 1300.

He conducted a foray with John de Segrave from Berwick in 1302, and fought at the battle of Methven in 1306.