| Óscar Díaz | |
| Fullname: | Óscar Nadin Díaz Gonzalez |
| Birth Date: | 1984 1, df=yes |
| Birth Place: | Luque, Paraguay |
| Position: | Defender |
| Years1: | 2003 |
| Clubs1: | 12 de Octubre |
| Years2: | 2004 |
| Caps2: | 23 |
| Goals2: | 0 |
| Clubs2: | Saturn Ramenskoye |
| Years3: | 2005 |
| Caps3: | 5 |
| Goals3: | 0 |
| Clubs3: | Rubin Kazan |
| Years4: | 2006 |
| Clubs4: | Deportes Quindío |
| Years5: | 2007 |
| Clubs5: | Sportivo Trinidense |
| Years6: | 2007 |
| Clubs6: | Cerro Porteño |
| Years7: | 2008 |
| Caps7: | 1 |
| Goals7: | 0 |
| Clubs7: | León |
| Years8: | 2008 |
| Clubs8: | Presidente Hayes |
| Years9: | 2009 |
| Clubs9: | 12 de Octubre |
| Years10: | 2010 |
| Caps10: | 13 |
| Goals10: | 1 |
| Clubs10: | América de Cali |
| Years11: | 2010 |
| Caps11: | 8 |
| Goals11: | 0 |
| Clubs11: | Deportivo Pereira |
| Years12: | 2011 |
| Caps12: | 3 |
| Goals12: | 0 |
| Clubs12: | 3 de Febrero |
| Years13: | 2011 |
| Caps13: | 0 |
| Goals13: | 0 |
| Clubs13: | Herediano |
| Years14: | 2012 |
| Caps14: | 2 |
| Goals14: | 0 |
| Clubs14: | Independiente |
| Years15: | 2012 |
| Caps15: | 32 |
| Goals15: | 0 |
| Clubs15: | Inti Gas |
| Years16: | 2014 |
| Caps16: | 9 |
| Goals16: | 1 |
| Clubs16: | San Simón |
| Years17: | 2015 |
| Caps17: | 6 |
| Goals17: | 0 |
| Clubs17: | Universitario de Pando |
| Nationalyears1: | 2003 |
| Nationalcaps1: | 4 |
| Nationalgoals1: | 0 |
| Nationalteam1: | Paraguay U20 |
Óscar Nadin Díaz Gonzalez (born 29 January 1984), known as Óscar Díaz, is a Paraguayan former footballer who played as centre-back or wing-back.
Díaz previously played for FC Saturn Ramenskoye and FC Rubin Kazan in the Russian Premier League.