At least two ships of the Brazilian Navy have borne the name Maranhão

, an launched in 1913 as HMS Porpoise she was acquired by Brazil in 1920 as Alexandrino de Alencar. Renamed Maranhão in 1927 she was discarded in 1946 a launched in 1944 as USS Shields, acquired by Brazil in 1972 and scrapped in 1990