| Giải vô địch bóng đá Đông Nam Á 1998 | |
|---|---|
 | |
| Tournament details | |
| Host country | Vietnam |
| Dates | 26 August – 5 September |
| Teams | 8 |
| Venue(s) | 2 (in 2 host cities) |
| Final positions | |
| Champions |  Singapore (1st title) |
| Runners-up |  Vietnam |
| Third place |  Indonesia |
| Fourth place |  Thailand |
| Tournament statistics | |
| Matches played | 16 |
| Goals scored | 55 (3.44 per match) |
| Attendance | 222,000 (13,875 per match) |
| Top scorer(s) |  Myo Hlaing Win (4 goals) |
The 1998 AFF Championship, officially known as the 1998 Tiger Cup, was the second edition of the AFF Championship. It was held in Vietnam from 26 August to 5 September 1998.
Thailand had been the defending champions, but lost to Vietnam in the semi-finals. Singapore won the tournament by a 1–0 victory against Vietnam in the finals to take their first title.