Adriano José Alves Moreira, ComC GCC GOIH GCSE (6 September 1922 – 23 October 2022) was a Portuguese lawyer, professor and a leading political figure in Portugal throughout the second half of the 20th century.

Moreira started as a sympathizer of the Portuguese Democratic Opposition movement; his name appeared on a list of signantes of the MUD in 1945.

He was the lawyer of the family of General José Marques Godinho, who had been arrested (and who later died in prison) because of his attempt to overthrow the Salazar regime in 1947.

Noted for the legislative reforms that he introduced during his two years (1961–1963) in this role, he also played a vital part in founding two African institutions of higher education: the Estudos Gerais Universitários de Moçambique and the Estudos Gerais Universitários de Angola.

His daughter, Isabel Moreira, is a Deputy in the Assembly of the Republic, representing the Portuguese Socialist Party (PS).