Don Juan Temple (né Jonathan; August 14, 1796 – May 31, 1866) was a Californian ranchero and merchant. Born in Massachusetts, he emigrated to Alta California in 1827, becoming a Mexican citizen, adopting the Spanish language and a Spanish name, and eventually marrying into a prominent Californio family. After acquiring Rancho Los Cerritos in 1843, he became one of the largest landowners in Los Angeles County.