Martín Alonso Pinzón, (Palos de la Frontera, Huelva; c. 1441 – c. 1493) was a Spanish mariner, shipbuilder, navigator and explorer, oldest of the Pinzón brothers. He sailed with Christopher Columbus on his first voyage to the New World in 1492, as captain of the Pinta. His youngest brother Vicente Yáñez Pinzón was captain of the Niña, and the middle brother Francisco Martín Pinzón was maestre (first mate) of the Pinta.