Ramón Castillo, Argentine politician (died 1944)

Ramón Antonio Castillo Barrionuevo was President of Argentina from 1942 to 1943. He took office after the resignation of President Roberto María Ortiz, under whom he was the Vice President. He was a leading figure in the period known as the Infamous Decade, characterised by electoral fraud, corruption and rule by conservative landowners heading the alliance known as the Concordancia.