Euler Bentes Monteiro (15 January 1917 – 23 July 2002)[1] was a Brazilian military officer.

[2] In 1950 he defended the state oil monopoly in the elections to the Military Club, joining the nationalist list.

[2] A front of opposition to the military dictatorship, articulated by Severo Gomes,[2] led him to run for president of Brazil, for the Brazilian Democratic Movement (MDB) in the indirect election of 1978, with Senator Paulo Brossard as vice president.

[7][8] During the Figueiredo government he was reprimanded by the Brazilian Army for having signed the manifesto Em defesa da Nação ameaçada ("In defense of the threatened Nation"), which called for effective actions to recover the national identity and regain control of the country's destiny.

Other personalities that signed the document, in addition to Bentes Monteiro, include Ariano Suassuna, Barbosa Lima Sobrinho and Fernando Henrique Cardoso.