Beira Litoral is a former province (província) of Portugal, formally instituted in an administrative reform of 1936. The territory corresponds mainly to the Douro Province from the 19th century. It was abolished with the 1976 Constitution of Portugal. The province was bordered on the north by Douro Litoral Province, on the east by Beira Alta Province and Beira Baixa Province, on the southeast by Ribatejo Province, on the southwest by Estremadura Province and on the West by the Atlantic Ocean.