Líber Seregni Mosquera (13 December 1916 – 31 July 2004) was a Uruguayan military officer and politician. In his youth he was a member of the Colorado Party. Under successive governments of that party, he had a successful military career until his retirement in 1968. In 1971, Seregni split with the Colorado Party, and was one of the founders of the Broad Front ("Frente Amplio" in Spanish, abbreviated as "FA") political coalition and was its presidential candidate in the general election of 1971. Banned and imprisoned by the military dictatorship, he was released in 1984. In 1989 he was once again presidential candidate in the general election of that year.