San Dionisio is the Spanish-language version of Saint Dionysius. It may refer to:
Places
El Salvador
- San Dionisio, Usulután
Mexico
- San Dionisio del Mar, Oaxaca
- San Dionisio Ocotepec, Oaxaca
- San Dionisio Ocotlan, Oaxaca
Nicaragua
- San Dionisio, Matagalpa
Philippines
- San Dionisio, Iloilo
- San Dionisio, Parañaque
United States
- Redoubt San Dionisio, a fortification in Russian America, near today's Wrangell, Alaska
See also
- Saint Dionysius