Ricardo César Guardo (21 October 1908 – 1984) was an Argentine dentist and politician. He served as a National Deputy elected in Buenos Aires from 1946 to 1952, and as President of the Chamber of Deputies from 1946 to 1948. A member of the peronist Justicialist Party, he also briefly served as Minister of Defense during the presidency of Isabel Perón in 1976 and as Argentina's ambassador to the Holy See from 1974 to 1976.