Juan Núñez (born 23 September 1956) is a former professional tennis player and coach, from Chile.

[1][2][3] Núñez partnered Alejandro Gattiker at the 1977 French Open but the pair were unable to get past the first round.

[4] In 1979, Núñez was a singles quarter-finalist at the Santiago Grand Prix tournament, with wins over Fernando Luna and Andrés Gómez.

[4] Núñez coached Chris Evert in the late 1980s, before joining Arantxa Sánchez Vicario in 1989.

[5] After leaving Sánchez Vicario, he spent time coaching Brenda Schultz and Natasha Zvereva.