| Jorge Núñez | |
| Full Name: | Jorge Martín Núñez Mendoza |
| Birth Date: | 22 January 1978 |
| Birth Place: | Asunción, Paraguay |
| Height: | 1.76 m |
| Position: | Left-back |
| Years1: | 1996–1999 |
| Years2: | 2000–2001 |
| Years3: | 2002–2003 |
| Years4: | 2003–2004 |
| Years5: | 2004–2005 |
| Years6: | 2005 |
| Years7: | 2005–2006 |
| Years8: | 2007–2008 |
| Years9: | 2008–2010 |
| Years10: | 2009–2010 |
| Years11: | 2010–2011 |
| Years12: | 2011 |
| Years13: | 2012 |
| Clubs10: | → Chacarita Juniors (loan) |
| Clubs11: | Rubio Ñu |
| Clubs12: | Independiente FBC |
| Clubs13: | General Caballero ZC |
| Caps1: | 42 |
| Caps2: | 37 |
| Caps3: | 32 |
| Caps4: | 34 |
| Caps5: | 34 |
| Caps6: | 8 |
| Caps7: | 11 |
| Caps8: | 54 |
| Caps9: | 11 |
| Caps10: | 16 |
| Caps11: | 35 |
| Caps12: | 13 |
| Caps13: | 24 |
| Goals1: | 5 |
| Goals2: | 2 |
| Goals3: | 3 |
| Goals4: | 1 |
| Goals5: | 2 |
| Goals6: | 0 |
| Goals7: | 0 |
| Goals8: | 3 |
| Goals9: | 0 |
| Goals10: | 0 |
| Goals11: | 2 |
| Goals12: | 1 |
| Goals13: | 2 |
| Nationalyears1: | 2003–2007 |
| Nationalteam1: | Paraguay |
| Nationalcaps1: | 23 |
| Nationalgoals1: | 1 |
Jorge Martín Núñez Mendoza (born 22 January 1978) is a Paraguayan former footballer who played as a defender.
He scored 1 goal in 18 caps for Paraguay, as of July 2007. He started his career in Club Guaraní and then moved to Cerro Porteño. Afterwards he played for several Argentine teams such as Banfield, Arsenal de Sarandí and Racing Club. Between 2005 and 2006, he played for Estudiantes de La Plata.
He had an opportunity to have a trial for Sheffield United at the start of the 2006–2007 season of the Premier League but opted against it as he was called up for international duty.
In 2007 Núñez returned to Paraguay to play for Cerro Porteño. In July 2008 he signed a contract with the Argentine team Rosario Central. In August 2009 he was loaned to Chacarita Juniors.
On 12 July 2010, Rubio Ñu signed him to improve the squad.