Carlos Altamirano Orrego (December 18, 1922 – May 19, 2019) was a Chilean lawyer. He was one of the most influential politicians of Chilean socialism. He was the general secretary of the Chilean Socialist Party (PS).[1] He served from 1971 through 1979. He was deputy from 1961 to 1965 and senator from 1965 to 1973. He was born in Santiago, Chile.