Óscar de Jesús Vargas Restrepo (born 23 March 1964) is a Colombian former road racing cyclist, who was a professional rider from 1985 to 1995.
During the 1992 Vuelta a España, Vargas won stage 20, ahead of eventual overall winner Tony Rominger.
However, he failed the subsequent doping test, returning a positive for caffeine, and was stripped of his result, with the stage win awarded to Rominger.
He was given a three-month suspension.
This biographical article relating to Colombian cycling is a stub.