Juan Carlos Yunis (born 17 January 1960) is an Argentine former professional tennis player.
A gold medalist at the 1978 Southern Cross Games, Yunis made his only Grand Prix main draw singles appearance at the 1982 Bordeaux Open, but competed more regularly as a doubles player. While partnering his younger brother Francisco Yunis, he was a losing doubles finalist at Bordeaux in 1983.
Yunis is now a resident of Switzerland.