1990–91 NK Rijeka season

The 1990–91 season was the 45th season in Rijeka's history and their 29th season in the Yugoslav First League. Their 6th place finish in the 1989–90 season meant it was their 17th successive season playing in the Yugoslav First League. This was also the last season in which Croatian clubs participated in the Yugoslav league.

First League
Source: rsssf.com

Yugoslav Cup
Source: rsssf.com

Squad statistics
''Competitive matches only. Appearances in brackets indicate numbers of times the player came on as a substitute.''