Gonzalo Villanueva (born 13 January 1995) is an Argentine tennis player. Villanueva has a career high ATP singles ranking of 272 achieved on 8 August 2022. He also has a career high ATP doubles ranking of 285 achieved on 8 August 2022. Villanueva made his ATP main draw debut at the 2022 Los Cabos Open after entering the singles main draw as a lucky loser.