| 8th Southeast Asian Basketball Championship | |
|---|---|
 Official logo of the 2012 SEABA Under-18 Championship | |
| Tournament details | |
| Host country | Singapore |
| Dates | June 26–30 |
| Teams | 5 |
| Venue(s) | 1 (in 1 host city) |
| Final positions | |
| Champions |  Philippines (6th title) |
| Tournament statistics | |
| Top scorer |  Goh (16.3) |
| Top rebounds | Goh (9.0) |
| Top assists | Thng J.R. (3.8) |
| PPG (Team) | Philippines (91.0) |
| RPG (Team) |  Indonesia (53.8) |
| APG (Team) | Philippines (17.5) |
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The 2012 SEABA Under-18 Championship was the qualifying tournament for Southeast Asia Basketball Association at the 2012 FIBA Asia Under-18 Championship. The tournament was held in Singapore from June 26 to June 30. The Philippines successfully defended their title by sweeping all of their assignments to earn right to represent SEABA together with Indonesia and Singapore.