| Kostadin Dzhambazov | |
| Birth Date: | 6 July 1980 |
| Birth Place: | Burgas, Bulgaria |
| Height: | 1.87 m |
| Position: | Defender |
| Years1: | 1997–2003 |
| Years2: | 2003–2005 |
| Years3: | 2005–2006 |
| Years4: | 2006–2007 |
| Years5: | 2007–2009 |
| Years6: | 2010–2011 |
| Years7: | 2011 |
| Clubs1: | Chernomorets Burgas |
| Clubs2: | Litex Lovech |
| Clubs3: | Naftex Burgas |
| Clubs4: | Slavia Sofia |
| Clubs5: | FK Khazar Lenkoran |
| Clubs6: | Neftochimic 1986 |
| Clubs7: | Nesebar |
| Caps1: | 101 |
| Caps2: | 16 |
| Caps3: | 21 |
| Caps4: | 28 |
| Caps5: | 45 |
| Caps6: | ? |
| Caps7: | 9 |
| Goals1: | 12 |
| Goals2: | 0 |
| Goals3: | 2 |
| Goals4: | 0 |
| Goals5: | 3 |
| Goals6: | ? |
| Goals7: | 1 |
| Totalcaps: | 220 |
| Totalgoals: | 18 |
| Manageryears1: | 2011–2012 |
| Managerclubs1: | Neftochimic 1986 (sport director) |
| Manageryears2: | 2013–2015 |
| Managerclubs2: | Neftochimic 1986 (youth academy director) |
| Pcupdate: | 14 September 2015 |
Kostadin Dzhambazov (Bulgarian Cyrillic: Костадин Джамбазов; born 6 July 1980 in Burgas) is a former Bulgarian footballer, who played as a defender.