Rancho San Francisquito was a 1,471-acre (5.95 km2) Mexican rancho or land grant in present-day Santa Clara County, California given in 1839 by Governor Juan Alvarado to Antonio Buelna. The grant was located on the southwest side of San Francisquito Creek and today encompasses northern part of the Stanford University campus. Neighboring ranchos included Rancho Rincon de San Francisquito to the south, and Rancho de las Pulgas to the north, on the other side of San Francisquito Creek. The boundary between Ranchos San Francisquito and de las Pulgas would later define part of the border between Santa Clara and San Mateo Counties. Rancho San Francisquito was commonly known as the Rancho of Palo Alto to avoid confusion with the adjoining Ranchos Rinconada del Arroyo de San Francisquito and Rincon de San Francisquito.