Martín Alonso Pinzón (towards 1441, Palos of Frontera, Spain - 1493, Palos of Frontera) is a navigator and exploring Spanish.

In 1488, with his/her brother Vincente Pinzón, they sail both on board a Norman ship, ordered by the Dieppois captain Jean Cousin. On the way towards Africa then the archipelago of the the Azores, the ship is drossé by the storm towards the South America. They accost with the Brésil with the course San Rogue.

Vincent Pinzon becomes the commander of Niña and his brother Martin Pinzon that of Pinta, two of the three boats which spring with the conquest of the New World four years later under the orders of some Christophe Colomb.

Born in a family from marine rich person, the Pinzón, he is the older brother of Vicente Yáñez Pinzón and joint owner of the caravel S Niña and Pinta . His/her brother Francisco Pinzón is the pilot of Niña.

It is Martín Pinzón which suggests in Colomb the change of course of October 7th 1492 which brings forwarding to the the Bahamas five days later. During the voyage, Pinzón disobeys the orders of Colomb on several occasions. November 2nd, Pinzón separates from Colomb with Cuba in the intention to make discoveries of its own boss and to find spoils. Pinzón joined Colomb on January 6th 1493, whereas the fleet returns to Spain. During the return voyage, the ship of Martín Pinzón is detached again, either because of a storm, or following the wish of its captain to arrive the first to Spain. Colomb will show Pinzón of disloyalty thereafter. Pinzón arrives at the port of Bayona before Colomb does not arrive to Lisbon. De Bayona, Pinzón joined Palos where he dies shortly after of the Syphilis.

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