| Mehmet Sak | |
| Birth Date: | 4 April 1990 |
| Birth Place: | Konak, İzmir, Turkey |
| Position: | Left back |
| Currentclub: | Bucaspor 1928 |
| Clubnumber: | 14 |
| Youthyears1: | 2002–2006 |
| Youthclubs1: | Altay |
| Years1: | 2006–2011 |
| Caps1: | 24 |
| Goals1: | 0 |
| Clubs1: | Altay |
| Years2: | 2011–2013 |
| Caps2: | 8 |
| Goals2: | 0 |
| Clubs2: | Bursaspor |
| Years3: | 2012 |
| Caps3: | 1 |
| Goals3: | 0 |
| Clubs3: | → Samsunspor (loan) |
| Years4: | 2013 |
| Caps4: | 6 |
| Goals4: | 0 |
| Clubs4: | → Göztepe (loan) |
| Years5: | 2013–2014 |
| Caps5: | 3 |
| Goals5: | 0 |
| Clubs5: | Bucaspor |
| Years6: | 2014–2016 |
| Caps6: | 47 |
| Goals6: | 2 |
| Clubs6: | Adanaspor |
| Years7: | 2016–2017 |
| Caps7: | 12 |
| Goals7: | 0 |
| Clubs7: | Yeni Malatyaspor |
| Years8: | 2017–2020 |
| Caps8: | 40 |
| Goals8: | 0 |
| Clubs8: | Ankaragücü |
| Years9: | 2020–2022 |
| Caps9: | 34 |
| Goals9: | 0 |
| Clubs9: | Hekimoğlu Trabzon |
| Years10: | 2022 |
| Caps10: | 16 |
| Goals10: | 0 |
| Clubs10: | Serik Belediyespor |
| Years11: | 2022–2023 |
| Caps11: | 15 |
| Goals11: | 0 |
| Clubs11: | Kocaelispor |
| Years12: | 2023– |
| Caps12: | 4 |
| Goals12: | 0 |
| Clubs12: | Bucaspor 1928 |
| Nationalyears1: | 2008 |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 0 |
| Nationalteam1: | Turkey U18 |
| Club-Update: | 23 September 2023 |
Mehmet Sak (born 4 April 1990) is a Turkish professional footballer who plays as a midfielder for Bucaspor 1928.
A native of İzmir, Sak began his career with local club Altay in 2006. He moved to Bursaspor in January 2011.
On 11 August 2012, he joined Samsunspor on a season-long loan.[1]