Encyclopedias, Almanacs, Transcripts, and Maps
- Samora, Julian
- Samora, Julian (1920–1996)
- Samper Agudelo, Miguel (1825–1899)
- Samper, José María (1828–1888)
- Sampras, Peter ("Pete")
- Samudio, Juan A. (1879–1936)
- San Agustín
- San Andrés
- San Andrés Island
- San Carlos Apache
- San Carlos de Guatemala, University of
- San Cristóbal de las Casas
- San Domingo Improvement Company
- San Gil
- San Ildefonso, Treaty of (1777)
- San José Conference of 1906
- San José de Flores, Pact of
- San José, Costa Rica
- San Juan de Ulúa
- San Juan Pueblo (Ohkay Owingeh)