The Croatian Volleyball Federation (Croatian: Hrvatski odbojkaški savez, HOS) is the governing body of volleyball in Croatia.
It is based in Zagreb.
It organizes the following volleyball leagues: It also organizes the Croatian national volleyball team and the Croatian national women's volleyball team.
The HOS was formed in 1946.
It is a member of the Fédération Internationale de Volleyball and the Confédération Européenne de Volleyball.