Fontes can refer to:
Places France Fontès, a commune in the Hérault department
Portugal Fontes (Abrantes), a civil parish in the municipality of Abrantes Fontes (Santa Marta de Penaguião), a civil parish in the municipality of Santa Marta de Penaguião
Literature Fontes Christiani, a bilingual collection of patristic and medieval Latin works with modern German translations
Other Fontes (surname), a Portuguese-language surname