1990-91 Yugoslav Handball Championship
1990–91 Yugoslav Handball Championship was the 39th and last season of the championship due to the break up of Yugoslavia.

First League

First Phase

 Sources: 
 en.wiki, RK Lovćen in the First League 
 Proleter Zrenjanin

Championship play-offs 
Winner: Zagreb Chromos

 Sources: 
 Proleter Zrenjanin

Second league

West 

 Sources: 
 40 godina rukometa u Metkoviću : 1963.-2003.

Third league

SR Croatia

Croatian League - East

 Sources: 
 RK Kaštela Adriachem - 50 godina rukometa u Kaštel Gomilici

Fourth and lower tiers

SR Croatia

Dalmatia league 
Fourth tier of the competition

 Sources: 
 RK Solin - 50 godina rukometa u Solinu 
 RK Hrvatski Dragovoljac Dugi Rat