Antonio Prieto Puerto (2 February 1905 – 4 February 1965) was a Spanish actor.
He was born in Aspe, province of Alicante in 1905.
He made his film debut in 1953 in El mensaje, then he appeared in Los Tarantos (1963) along Carmen Amaya, Rififi (1955) along Fernando Fernán-Gómez, El tímido and Llanto por un bandido (1964). His most notable role was Don Benito Rojo in Sergio Leone's film A Fistful of Dollars (1964) along with Gian Maria Volonté.
He won the Premio Nacional de Interpretación de España in 1959 for his work on stage.
He passed away shortly after completing his final film, Flor salvaje (1965). His death was recorded as heart failure, and he was buried in the Sacramental de San Justo cemetery in Madrid. He died in Madrid in 1965.