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.

This biographical article relating to volleyball in the Netherlands is a stub.