San Mateo
- Saint Matthew
- Saint-Mathieu (disambiguation)
- San Mateo (Cantabria)
- San Mateo (Santurce)
- San Mateo (canton)
- San Mateo (water)
- San Mateo Atenco
- San Mateo Cajonos
- San Mateo County, California
- San Mateo District, Huarochirí
- San Mateo Etlatongo
- San Mateo Nejapam
- San Mateo Peñasco
- San Mateo Piñas
- San Mateo Río Hondo
- San Mateo Sindihui
- San Mateo Tlapiltepec
- San Mateo Yoloxochitlán
- San Mateo de Alajuela
- San Mateo de Otao District
- San Mateo del Mar
- San Mateo, Anzoátegui
- San Mateo, Aragua
- San Mateo, Boyacá
- San Mateo, California
- San Mateo, Florida
- San Mateo, Isabela
- San Mateo, New Mexico
- San Mateo, Quetzaltenango
- San Mateo, Rizal
- San Mateo, San Pablo
- San Matéo River
- San Matéo River (Ichilo River)
- Sant Mateu (disambiguation)
- Spanish language
- São Mateus (disambiguation)
- Vega de San Mateo