| Tournament details | |
|---|---|
| Host countries |  Myanmar Vietnam |
| City | Yangon Ho Chi Minh City |
| Dates | 7–18 June |
| Teams | 9 (from 1 confederation) |
| Venue(s) | 2 (in 2 host cities) |
| Final positions | |
| Champions |  Myanmar (1st title) |
| Runners-up |  Malaysia |
| Third place |  Singapore |
| Fourth place | Vietnam |
| Tournament statistics | |
| Matches played | 20 |
| Goals scored | 73 (3.65 per match) |
← 2002 2005 → | |
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The 2003 AFF U-18 Youth Championship was held from 7 to 18 June 2003 and was co-hosted by Myanmar and Vietnam. This was the inaugural edition of the tournament.