Brazil
* São Pedro River (Alonzo River), a river of Paraná state in southern Brazil * São Pedro River (Guandu River), a river of Rio de Janeiro state in southeastern Brazil * São Pedro River (Macaé River), a river of Rio de Janeiro state in southeastern Brazil * São Pedro River (Minas Gerais), a river of Minas Gerais state in southeastern Brazil * São Pedro River (Pernambuco) * São Pedro River (Santa Catarina), a river of Santa Catarina state in southeastern BrazilSee also
* São Pedro (disambiguation) {{DEFAULTSORT:Sao Pedro River