1998–99 Croatian First Football League

The 1998–99 Croatian First Football League was the eighth season of the Croatian top-level football league since its establishment.

Stadia and personnel

 * 1 On final match day of the season, played on 26 May 1999.
 * 2 Hrvatski Dragovoljac also used Stadion ŠRC Stanko Vlajnić-Dida in Slavonski Brod for their last eight home matches of the season.

Overview
It was contested by 12 teams, and Croatia Zagreb won the championship. In the first stage upper six teams advance to Championship Group, bottom six to Relegation Group, with 50% of points taken to the next phase of the competition.