Captain Lazarus Stewart (July 4, 1734 – July 3, 1778) was an 18th-century Pennsylvanian frontiersman and leader of the Paxton Boys. He achieved notoriety by leading the massacre of the Susquehannocks in 1763, and was a prominent military commander — on the Yankee (i.e. Connecticut) side — in the Pennamite Wars. He met his death in battle with the Loyalists and Iroquois at the Wyoming Massacre, in an attack precipitated by his own rashness.