- Source: Fort San Juan
- San Juan de Ulúa
- San Francisco
- Carolina Utara
- 522 Martir Spanyol
- Bandar Udara Internasional Hollywood-Fort Lauderdale
- Bandar Udara Internasional Juan Santamaria
- Sesar San Andreas
- Golden Gate
- Dumaran, Palawan
- Bandar Udara Internasional Pointe-à-Pitre
- Fort San Juan (Joara)
- San Juan de Ulúa
- Fort San Juan
- Fortín San Juan de la Cruz
- Old San Juan
- San Juan Expedition (1780)
- Castillo San Felipe del Morro
- Fortín de San Gerónimo
- San Juan, Puerto Rico
- Castillo San Cristóbal (San Juan)
Fort San Juan may refer to:
Fort San Juan (Joara), established by Juan Pardo in 1567-8 as the earliest Spanish outpost in the interior of what is now North Carolina
Fort San Juan (Nicaragua)
Battle of Fort San Juan (1780), in which the fort in Nicaragua was contested
San Juan de Ulúa, a fortress complex on an island overlooking Veracruz, Mexico
Fortín San Juan de la Cruz (Fort Saint John of the Cross), or El Cañuelo, on Isla de Cabras, Puerto Rico
San Juan del Bayou, a previous name of Spanish Fort, New Orleans