Castelo, Espírito Santo, a municipality in the State of Espírito SantoCastelo (Rio de Janeiro), a neighbourhood in the State of Rio de Janeiro
Portugal
Castelo (Lisbon), a civil parish in the municipality of LisbonCastelo (Moimenta da Beira), a civil parish in the municipality of Moimenta da BeiraCastelo (Sertã), a civil parish in the municipality of SertãCastelo (Sesimbra), a civil parish in the municipality of SesimbraSanta Maria do Castelo e São Miguel (Torres Vedras), a civil parish in the municipality of Torres VedrasCastelo do Neiva (Viana do Castelo), a civil parish in the municipality of Viana do Castelo
Other
Castelo Futebol Clube, a Brazilian football (soccer) club
