San Ignacio (the Spanish language name of St. Ignatius) is a common toponym in parts of the world where that language is or was spoken:
Argentina San Ignacio, Argentina, Misiones Province San Ignacio Miní, a Jesuit mission in Misiones Province
Belize San Ignacio, Belize (Cayo District), towns in western Belize
Bolivia San Ignacio de Moxos San Ignacio de Velasco San Ignacio, Mamoré San Ignacio de Zamucos
Chile San Ignacio, Chile, a town in the Ñuble Region
Costa Rica San Ignacio District, Acosta, San José Province
El Salvador San Ignacio, Chalatenango
Honduras San Ignacio, Francisco Morazán
Mexico San Ignacio, Baja California Sur San Ignacio, Chihuahua (Práxedis G. Guerrero) San Ignacio, Sinaloa San Ignacio Río Muerto (Sonora) San Ignacio Lagoon San Ignacio Cerro Gordo, Jalisco
Northern Mariana Islands Former colonial name of Pagan
Paraguay San Ignacio, Paraguay, a city and district in the Misiones Department
Peru San Ignacio, Perú San Ignacio District, Peru San Ignacio Province, Cajamarca Region
Spain San Ignacio (Ponga)
United States San Ignacio, Texas
See also St. Ignatius Church (disambiguation)