| Thomas Koelewijn | |
| Nationality: | Dutch |
| Birth Date: | 18 December 1988 |
| Birth Place: | Kampen, Netherlands |
| Height: | 2.06 m |
| Weight: | 100 kg |
| Spike: | 360 cm |
| Block: | 350 cm |
| Position: | Middle blocker |
| Currentclub: | Montpellier UC |
| Currentnumber: | 15 |
| Years: | 2012–2014 2014–2015 2015–2016 2016– |
| Teams: | VC Antwerpen Arago de Sete Indykpol AZS Olsztyn Montpellier UC |
| Nationalyears: | 2012– |
| Nationalteam: | Netherlands |
| Updated: | 31 January 2017 |
Thomas Koelewijn (born 18 December 1988) is a Dutch volleyball player, a member of Netherlands men's national volleyball team and French club Montpellier UC.
With his national team he achieved gold medal of 2012 European League.[1] In 2015 he moved to Polish club Indykpol AZS Olsztyn. After season he went to French team Montpellier UC.