Kaido Kreen (born on 12 January 1965 in Viljandi) is an Estonian volleyball player.[1]
1986–1997 he was a member of Estonian volleyball team. 1988 and 1990 his club Tallinna Autobussikoondis won Estonian championships.[1]
He participated in 1996 Atlanta Olympic Games where he played beach volleyball with Avo Keel. They shared the places 17.-24.[1]