| Oumar Diaby | |
| Height: | 1.88 m |
| Birth Date: | 7 February 1990 |
| Birth Place: | Bayonne, France |
| Position: | Forward |
| Youthyears1: | 1998–2003 |
| Youthclubs1: | Bayonne |
| Youthyears2: | 2003-2007 |
| Youthclubs2: | Real Sociedad |
| Years1: | 2003–2009 |
| Clubs1: | Real Sociedad B |
| Years2: | 2009–2010 |
| Clubs2: | Châteauroux B |
| Years3: | 2010–2011 |
| Clubs3: | Genêts Anglet |
| Caps3: | 32 |
| Goals3: | 5 |
| Years4: | 2011–2012 |
| Clubs4: | Agde |
| Caps4: | 13 |
| Goals4: | 1 |
| Years5: | 2012–2015 |
| Clubs5: | VSS Košice |
| Caps5: | 67 |
| Goals5: | 13 |
| Years6: | 2015 |
| Clubs6: | Levski Sofia |
| Caps6: | 11 |
| Goals6: | 1 |
| Years7: | 2016 |
| Clubs7: | Hamilton Academical |
| Caps7: | 6 |
| Goals7: | 0 |
| Years8: | 2018–2019 |
| Clubs8: | Balma |
| Caps8: | 14 |
| Goals8: | 1 |
| Club-Update: | 1 July 2019 |
Oumar Diaby (born 7 February 1990) is a French former professional footballer who played as a forward. After developing at Real Sociedad in Spain, he has featured for clubs in his native country as well as in Bulgaria, Slovakia and Scotland.
Diaby was the first French player to move to the Real Sociedad academy at the age of 12 in 2002, which paved the way for other French players, including Antoine Griezmann.
In October 2012, he signed a three-year contract with MFK Košice. He made his debut for Košice against Dukla Banská Bystrica on 1 December 2012.[1]
He signed for Scottish club Hamilton Academical in February 2016.[2] He spoke about his problems with racism while he was playing in Slovakia and Bulgaria.[3] In May 2016 it was announced that he would leave Hamilton at the end of the 2015–16 season.[4]
After taking a break from football, in 2018 Diaby signed for amateurs Balma, based on the outskirts of Toulouse where his partner was studying.[5]