San Xavier

San Xavier may refer to:
 * Francis Xavier (1506–1552), Roman Catholic missionary
 * San Javier, Ñuflo de Chávez, Santa Cruz Department, Bolivia
 * San Xavier, Arizona, a town
 * San Xavier Indian Reservation, near Tucson, Arizona, United States
 * Mission San Xavier del Bac, a historic Spanish Catholic mission on San Xavier Indian Reservation
 * San Xavier talus snail or Sonorella eremita, a species of air-breathing land snail