Brazilian submarine Humaytá
 Humaytá was a modified Balilla-class submarine built in Italy for the Brazilian Navy. The submarine was laid down by Odero-Terni-Orlando at La Spezia on 19 November 1925 launched on 11 June 1927 and handed over to the Brazilian Navy on 11 June 1929. Proceeds from the sale of the Brazilian battleship Marshal Deodoro to the Mexican Navy provided funds for Humaytá's purchase. Humaytá was commissioned into the Brazilian Navy on 20 July 1929.