| Juan Manuel Barrientos | |
| Height: | 1.750NaN0 |
| Birth Date: | 4 March 1982 |
| Youthyears1: | 1998–2003 |
| Years1: | 2003–2004 |
| Years2: | 2004 |
| Years3: | 2005–2007 |
| Years4: | 2007–2009 |
| Years5: | 2010 |
| Years6: | 2010 |
| Years7: | 2011 |
| Years8: | 2016 |
| Caps1: | 3 |
| Caps2: | 10 |
| Caps3: | 32 |
| Caps4: | 46 |
| Caps5: | 6 |
| Caps6: | 7 |
| Caps7: | 1 |
| Goals1: | 0 |
| Goals2: | 4 |
| Goals3: | 0 |
| Goals4: | 7 |
| Goals5: | 0 |
| Goals6: | 0 |
| Goals7: | 0 |
| Pcupdate: | December 30, 2010 |
Juan Manuel Barrientos (born 4 March 1982 in Lomas de Zamora, Buenos Aires) is an Argentine football midfielder.
Barrientos began his career at Racing Club in the Primera Division Argentina in 2003. In 2004, he played 6 months in the Regionalised Torneo Argentino B of Argentine football for Textil Mandiyú. In 2005, he was released by Racing Club and he moved to France.
In 2005, he began his new life in French Ligue 2 club FC Lorient with high expectations. At the end of the 2005–2006 season the club were promoted to Ligue 1 and Barrientos saw his return to top-level football.
After his time in the Greek championship, Juan Manuel got married on the 20th of June 2008.