Geoffrey II, called Martel ("the Hammer"), is Count of Anjou from 1040 to 1060.

He is the son of Fulk the Black.

He is bellicose and fights against William VII, Duke of Aquitaine, Theobald I, Count of Blois, and William, Duke of Normandy.

During his twenty-year reign he especially has to face the ambitions of the Bishop of Le Mans, Gervais de Château-du-Loir, but he is able to maintain his authority over the County of Maine.

Even before the death of his father in 1040, he had extended his power up to the Saintonge, where he founds the Abbey aux Dames.