Kaarel Kais (born 13 September 1974) is an Estonian volleyball player.
He has played at volleyball clubs Pärnu Võrkpalliklubi, and Tartu Pere Leib.
He is multiple-times Estonian champion in beach volleyball.
[1] 1999–2002 he and his brother Kristjan were named as the Best Beach Volleyball Players of Estonia.
This biographical article relating to volleyball in Estonia is a stub.