The 1998–99 EHF Women's Champions League was the sixth edition of the modern era of the 1961-founded competition for European national champions women's handball clubs, running from 4 September 1998 to 16 May 1999.
Dunaferr NK defeated Krim Ljubljana in the final to follow the steps of Vasas SC as the second Hungarian club to win the competition.
[1] Defending champion Hypo Niederösterreich was defeated by the Slovenians in the semifinals.
[2]