João do Canto e Castro
 João do Canto e Castro da Silva Antunes commonly known as João do Canto e Castro (Portuguese pronunciation: [ʒuˈɐ̃w̃ du ˈkɐ̃tu i ˈkaʃtɾu]) or just Canto e Castro (May 19 1862 in Lisbon – March 14 1934 in Lisbon) was a Portuguese Navy officer and the fifth President of the Portuguese Republic from December 16 1918 to October 5 1919.He was the son of José Ricardo da Costa da Silva Antunes (Lisbon 7 February 1831 – 7 August 1906) and wife (m.