| Juan Ramón Jara | |
| Fullname: | Juan Ramón Jara Martínez |
| Height: | 1.75 m |
| Birth Date: | 1970 8, df=yes |
| Position: | Left-back |
| Years1: | 1992–1993 |
| Years2: | 1993–1995 |
| Years3: | 1995 |
| Years4: | 1996 |
| Years5: | 1996–1999 |
| Years6: | 2001–2002 |
| Years7: | 2003 |
| Years8: | 2003–2004 |
| Years9: | 2004 |
| Years10: | 2005 |
| Years11: | 2007 |
| Clubs1: | Olimpia Asunción |
| Clubs2: | Rosario Central |
| Clubs3: | Independiente |
| Clubs4: | Colón de Santa Fe |
| Clubs5: | Rosario Central |
| Clubs6: | Olimpia Asunción |
| Clubs7: | Emelec |
| Clubs8: | Nueva Chicago |
| Clubs9: | Nacional Asunción |
| Clubs10: | 3 de Febrero |
| Clubs11: | Portuguesa |
| Caps1: | ? |
| Caps2: | 61 |
| Caps3: | 9 |
| Caps4: | 9 |
| Caps5: | 41 |
| Caps6: | ? |
| Caps7: | 12 |
| Caps8: | 25 |
| Caps9: | ? |
| Caps10: | ? |
| Caps11: | ? |
| Goals1: | ? |
| Goals2: | 2 |
| Goals3: | 0 |
| Goals4: | 0 |
| Goals5: | 1 |
| Goals6: | ? |
| Goals7: | 0 |
| Goals8: | 0 |
| Goals9: | ? |
| Goals10: | ? |
| Goals11: | ? |
| Nationalyears1: | 1992 |
| Nationalteam1: | Paraguay U23 |
| Nationalyears2: | 1993–1997 |
| Nationalteam2: | Paraguay |
| Nationalcaps2: | 17 |
| Nationalgoals2: | 0 |
| Pcupdate: | September 2008 |
Juan Ramón Jara Martínez (born 6 August 1970) is a retired football defender from Paraguay.
Jara started his career with Olimpia in Paraguay before moving to Argentina to play for clubs such as Rosario Central, Independiente and Colón de Santa Fe. He spent his best years playing for Rosario Central, where he earned than 100 caps,[1] and was part of the team that finished as runners-up in the 1998 Copa CONMEBOL. Jara then returned to Paraguay to play again for Olimpia and then had brief stints at Nueva Chicago (Argentina), Emelec (Ecuador), Nacional and 3 de Febrero (Paraguay) before finally playing for Portuguesa Fútbol Club of Venezuela in 2007.
Jara made his international debut in the Paraguay national football team on 10 June 1993 in a friendly match against Mexico (3-1 loss), substituting Carlos Gamarra in the 75th minute. He obtained a total number of 17 international caps, scoring no goals for the national side.
Jara was in the Paraguay national football team that competed at the 1992 Olympic games.[2] Be also participated in a few matches for the 1998 FIFA World Cup qualifiers.[3]