| Competition: | Luxembourg National Division |
| Season: | 1998–99 |
| Winners: | Jeunesse Esch (26th titles) |
| Continentalcup1: | Champions League |
| Continentalcup1 Qualifiers: | Jeunesse Esch |
| Continentalcup2: | UEFA Cup |
| Continentalcup2 Qualifiers: | F91 Dudelange Mondercange (via cup) |
| Continentalcup3: | Intertoto Cup |
| Continentalcup3 Qualifiers: | Union Luxembourg |
| Relegated: | Pétange Spora |
| Prevseason: | 1997–98 |
| Nextseason: | 1999–2000 |
The 1998–99 Luxembourg National Division was the 85th season of top level association football in Luxembourg.
It was performed in 12 teams, and Jeunesse Esch won the championship.