San Pedro Martir
San Pedro Mártir is the name
- a Mexican mountain range, see Sierra San Pedro Mártir
- a Mexican island in the Gulf of California, see Isla San Pedro Mártir
- of a Mexican river, see Río San Pedro Martír
- of a place in the Mexican state of Oaxaca, see San Pedro Mártir (Oaxaca)
- of a place in the Mexican state of Querétaro, see San Pedro Mártir (Querétaro)
- of a place in the Mexican state of Veracruz, see San Pedro Mártir (Veracruz)
- an administrative unit in the Mexican state of Oaxaca, see Municipio San Pedro Mártir