Gilbert Buatère (c. 985 – 1 October 1018) was one of the first Norman adventurers in the Mezzogiorno. He was the eldest son of a petty, but rich, lord of Carreaux, near Avesnes-en-Bray in the region of Rouen. Carreaux gives his family, the Drengot, the alternate name of de Quarrel.