Presidio is the Spanish term for a fortified place; in Spanish America it was a fortified post that included a garrison and often a prison. Several presidios are of importance in North American history; if no location is specified, the Presidio of San Francisco is almost always the one meant.
- Presidio of San Francisco, CA.
- Presidio LaBahia, TX.
- Presidio of Monterey, CA.
- Presidio of San Diego, CA.
- Presidio of Santa Barbara, CA.
- Presidio San Antonio de Bexar, TX.