| David Quiroz | |
| Fullname: | Mario David Quiroz Villón |
| Birth Date: | 8 September 1982 |
| Birth Place: | Guayaquil, Ecuador |
| Position: | Midfielder |
| Youthyears1: | 2001–2002 |
| Youthclubs1: | El Nacional U-20 |
| Years1: | 2001–2007 |
| Years2: | 2008–2009 |
| Years3: | 2009–2011 |
| Years4: | 2012–2013 |
| Years5: | 2012 |
| Years6: | 2013 |
| Years7: | 2014–2015 |
| Years8: | 2016 |
| Clubs2: | → Barcelona SC (loan) |
| Clubs3: | Emelec |
| Clubs4: | Atlante |
| Clubs5: | → LDU Quito (loan) |
| Clubs6: | → Deportivo Quito (loan) |
| Clubs7: | Olmedo |
| Clubs8: | Guayaquil S.C. |
| Caps1: | 206 |
| Caps2: | 39 |
| Caps3: | 85 |
| Caps4: | 8 |
| Caps5: | 13 |
| Caps6: | 4 |
| Caps7: | 12 |
| Caps8: | 30 |
| Goals1: | 36 |
| Goals2: | 11 |
| Goals3: | 18 |
| Goals4: | 0 |
| Goals5: | 0 |
| Goals6: | 0 |
| Goals7: | 0 |
| Goals8: | 2 |
| Nationalyears1: | 2004–2012 |
| Nationalteam1: | Ecuador |
| Nationalcaps1: | 31 |
| Nationalgoals1: | 0 |
| Pcupdate: | December 11, 2016 |
| Ntupdate: | June 2, 2012 |
Mario David Quiroz Villón (born September 8, 1982, in Guayaquil) is an Ecuadorian Association footballer.
Quiroz started at El Nacional. He was a starter in the Copa Sudamericana 2007 and in the 2007 Copa Libertadores.
In January 2008, he signed a contract for the successful Ecuadorian Barcelona. He recently has had excellent performances with his new club. He was a regular starter for head coach, Reinaldo Merlo.
In January 2009 Quiroz signed with Emelec for three years.
On 10 December 2011 Quiroz was transferred to Mexico club Atlante FC.
In January 2012, he was on loan with LDU Quito for one year.
Quiroz is seen as a promising player; he has played for the Ecuador national team and made his beginning appearances against Sweden. His next international appearance was in a friendly against Ireland in the Giants Stadium, New York City. He had no play for the Copa América 2007 for Ecuador. He has seen playing time so far in Ecuador's 2010 World Cup qualifying tournament, starting in the 5–1 win over Peru in Quito.
2005 Clausura, 2006