| Yakov Kazak | |
| Birth Date: | 1 August 1985 |
| Birth Place: | Minsk, Belarusian SSR |
| Position: | Midfielder |
| Youthyears1: | 2001 |
| Youthclubs1: | Torpedo-MAZ Minsk |
| Years1: | 2002–2008 |
| Years2: | 2002 |
| Years3: | 2007 |
| Years4: | 2008–2009 |
| Years5: | 2010–2011 |
| Years6: | 2011–2012 |
| Years7: | 2013 |
| Years8: | 2014 |
| Clubs1: | Lokomotiv Minsk |
| Clubs2: | → SKVICH Minsk |
| Clubs3: | → SKVICH Minsk |
| Clubs4: | Baranovichi |
| Clubs5: | Rudensk |
| Clubs6: | Slavia Mozyr |
| Clubs7: | Smorgon |
| Clubs8: | Smolevichi-STI |
| Caps1: | 1 |
| Caps2: | 17 |
| Caps3: | 30 |
| Caps4: | 33 |
| Caps5: | 40 |
| Caps6: | 28 |
| Caps7: | 24 |
| Caps8: | 26 |
| Goals1: | 0 |
| Goals2: | 1 |
| Goals3: | 9 |
| Goals4: | 1 |
| Goals5: | 3 |
| Goals6: | 4 |
| Goals7: | 2 |
| Goals8: | 1 |
Yakov Kazak (Belarusian: Якаў Казак; Russian: Яков Казак; born 1 August 1985) is a retired Belarusian footballer who last played for Smolevichi-STI.