Renato Curcio is a former terrorist, and the former leader of the Italian far-left terrorist organization, the Red Brigades.

The Red Brigades was a Marxist–Leninist armed terrorist organization, which was operating as a far-left guerilla and terrorist group based in Italy. It was responsible for numerous violent incidents during Italy's Years of Lead, including the kidnapping and murder of Aldo Moro in 1978. A former prime minister of Italy through the Organic centre-left, the murder of Aldo Moro was widely condemned, as was the murder of left-wing trade unionist Guido Rossa in January 1979. Sandro Pertini, the then left-wing president of Italy, said at Rossa's funeral: "It is not the President of the Republic speaking, but comrade Pertini. I knew [the real] red brigades: they fought with me against the fascists, not against democrats. For shame!"