Ismael Vicuña Subercaseaux

Ismael Vicuña Subercaseaux (1877 – 1933) was a Chilean farmer, politician and diplomat who served as a member of the Chamber of Deputies of Chile.

Born in Santiago, he was the son of Claudio Vicuña Guerrero and Lucía Subercaseaux Vicuña. He was educated at the Sacred Hearts school in Paris and later completed his humanities studies at the Instituto Nacional in Santiago. He inherited agricultural properties in central Chile, particularly in Colchagua Province, where he combined farming with political activities.

A member of the Liberal Democratic Party, Vicuña was elected deputy for San Fernando for the 1912–1915 legislative period and served on the Permanent Commission of Internal Police. His mandate ended on 31 July 1913, when the Chamber approved the credentials of José Francisco Echaurren Larraín. Vicuña returned to the Chamber after being elected for San Fernando for the 1915–1918 term, again serving on the Permanent Commission of Internal Police.

In 1920, Vicuña entered the Chilean diplomatic service as an official at the Chilean legation in Berlin. He was appointed to the consulate in Bremen in 1921 and served as acting consul general in Hamburg in 1923. In 1926, he published Cartas de Bremen, in which he advocated German immigration to Chile.