Diego de Vargas Zapata y Luján Ponce de León y Contreras (1643–1704), commonly known as Don Diego de Vargas, was a Spanish Governor of the New Spain territory of Santa Fe de Nuevo México, to the US states of New Mexico and Arizona, titular 1690–1695, effective 1692–1696 and 1703–1704. He is known for leading the reconquest of the territory in 1692 following the Pueblo Revolt of 1680. This reconquest is commemorated annually during the Fiestas de Santa Fe in the city of Santa Fe.

Santa Fe de Nuevo México was a province of the Spanish Empire and New Spain, and later a territory of independent Mexico. The first capital was San Juan de los Caballeros from 1598 until 1610, and from 1610 onward the capital was La Villa Real de la Santa Fe de San Francisco de Asís.