1998–99 Slovak Cup
| Tournament details | |
|---|---|
| Country | Slovakia |
| Teams | 42 |
| Final positions | |
| Champions | Slovan Bratislava |
| Runners-up | Dukla Banská Bystrica |
The 1998–99 Slovak Cup was the 30th season of Slovakia's annual knock-out cup competition and the sixth since the independence of Slovakia. It began on 29 July 1998 with the matches of preliminary round and ended on 8 May 1999 with the final. The winners of the competition earned a place in the first round of the UEFA Cup. Spartak Trnava were the defending champions.