| Kostas Iasonidis | |
| Fullname: | Konstantinos Iasonidis |
| Birth Date: | 1 October 1985 |
| Birth Place: | Oinoi, Kastoria, Greece |
| Currentclub: | Tilikratis |
| Position: | Defender |
| Youthyears1: | Panathinaikos |
| Years1: | 2002–2003 |
| Years2: | 2003–2004 |
| Years3: | 2005 |
| Years4: | 2005 |
| Years5: | 2006 |
| Years6: | 2006–2009 |
| Years7: | 2009 |
| Years8: | 2010 |
| Years9: | 2011 |
| Years10: | 2011–2012 |
| Years11: | 2012–2013 |
| Years12: | 2013 |
| Years13: | 2014–2015 |
| Years14: | 2015– |
| Clubs1: | Panathinaikos |
| Clubs5: | Apllon Smyrni |
| Clubs8: | Panthrakikos |
| Clubs9: | Anagennisi Giannitsa |
| Clubs10: | Tilikratis |
| Clubs11: | Apllon Smyrni |
| Clubs12: | Pierikkos |
| Clubs13: | Ermionida |
| Clubs14: | Tilikratis |
| Caps1: | 0 |
| Caps2: | 45 |
| Caps3: | 5 |
| Caps4: | 1 |
| Caps5: | 19 |
| Caps6: | 82 |
| Caps7: | 11 |
| Caps8: | 15 |
| Caps9: | 13 |
| Caps10: | 21 |
| Caps11: | 31 |
| Caps12: | 9 |
| Caps13: | 0 |
| Caps14: | 0 |
| Goals1: | 0 |
| Goals2: | 4 |
| Goals3: | 0 |
| Goals4: | 0 |
| Goals5: | 1 |
| Goals6: | 5 |
| Goals7: | 0 |
| Goals8: | 0 |
| Goals9: | 0 |
| Goals10: | 1 |
| Goals11: | 1 |
| Goals12: | 0 |
| Goals13: | 0 |
| Goals14: | 0 |
| Nationalgoals1: | club-update = 28 June 2010nationalteam-update = |
Kostas Iasonidis (el|Κώστας Ιασωνίδης; born 1 October 1985) is a Greek footballer, who plays for Tilikratis in Gamma Ethniki.
Born in Oinoi, Kastoria, Iasonidis began playing football with Markopoulo F.C.
| season | club | league | Championship | Nation cup | Europe cup | Total | |||||
| appear | goals | appear | goals | appear | goals | appear | goals | ||||
| 2003–04 | Markopoulo F.C. | Gamma Ethniki | 32 | 1 | 0 | 0 | 0 | 0 | 32 | 1 | |
| 2004 | 13 | 3 | 0 | 0 | 0 | 0 | 13 | 3 | |||
| 2005 | Paniliakos | Beta Ethniki | 5 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | |
| 2005 | Proodeftiki | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | ||
| 2006 | Apollon Smyrnis | Gamma Ethniki | 19 | 1 | 0 | 0 | 0 | 0 | 19 | 1 | |
| 2006–07 | Kastoria | Beta Ethniki | 29 | 0 | 0 | 0 | 0 | 0 | 29 | 0 | |
| 2007–08 | 32 | 4 | 0 | 0 | 0 | 0 | 32 | 4 | |||
| 2008–09 | 21 | 1 | 0 | 0 | 0 | 0 | 21 | 1 | |||
| 2009 | Anagennisi Karditsa | 11 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | ||
| 2010 | Panthrakikos | Super League | 10 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | |
| 2010–11 | Beta Ethniki | 5 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | ||
| career total | 172 | 10 | 0 | 0 | 0 | 0 | 172 | 10 | |||