Pinus maximartinezii, called Martinez pinyon, big-cone pinyon or maxipiñon, is a pine in the pinyon pine group, native to central Mexico. The range is highly localised, confined to a small area of the southern Sierra Madre Occidental in southern Zacatecas. It occurs at moderate altitudes, from 1800–2400 m and 21° North latitude, in warm and temperate, dry climate conditions. It has started being cultivated recently and is a very attractive tree as ornamental. The Mexican government has declared this species endangered.