| Singles | |
|---|---|
| 1998 Grand Prix de Tennis de Lyon | |
| Champion |
|
| Runner-up |
|
| Final score | 2–6, 7–6(8–6), 6–1 |
Fabrice Santoro was the defending champion, but lost in the second round this year.
Àlex Corretja won the tournament, beating Tommy Haas 2–6, 7–6(8–6), 6–1 in the final.