| Season: | 1998–99 |
| League Result: | 6th |
| League Topscorer: | Márcio Amoroso (22) |
| Cup2 Result: | Quarter-finals |
| Nextseason: | 1999–2000 |
Udinese Calcio faded slightly compared to its record-breaking 1997–98 season, in which it finished third in Serie A. With top scorer Oliver Bierhoff, midfielder Thomas Helveg, and coach Alberto Zaccheroni all departing for Milan, Udinese appeared to be on the back foot prior to the start of the season.
Márcio Amoroso proved to be a worthy replacement for Bierhoff, scoring 22 goals after taking on increased responsibility. With this performance, Amoroso became the top scorer himself before departing for Parma, which paid a substantial sum for him.
The highlight of Udinese's season was qualifying for the 1999–2000 UEFA Cup, which was secured in a playoff against Juventus, as both clubs were tied on points for sixth place. Thanks to a goalless draw at home and Paolo Poggi's equalizer in Turin, Udinese clinched sixth place and the UEFA Cup slot.
Valerio Bertotto Alessandro Calori
Mohammed Gargo
Régis Genaux
Mauro Navas Alessandro Pierini Marco Zanchi Stephen Appiah Jonathan Bachini Giuliano Giannichedda Tomas Locatelli Mauricio Pineda Johan WalemSee main article: 1998–99 Serie A.
6th and 7th of Serie A:(Udinese therefore declared sixth in the league standings. Udinese qualified for the 1999–2000 UEFA Cup).
First round
