The 2017 AFF U-15 Championship was the twelfth edition of the AFF U-16 Championship (first edition of the under-15 era), the annual international youth association football championship organised by the ASEAN Football Federation for men's under-15 national teams of Southeast Asia. It had reverted from an under-16 competition to an under-15 competition in preparation for the AFC U-16 Championship 2018 qualifiers. Thailand, which were selected to host the tournament, returning for the first time since the cancelled 2009 AFF U-16 Youth Championship. Vietnam won the tournament after beating Thailand 4âÂÂ2 on penalties in the final.
A total of 12 teams played in the tournament, with players born on or after 1 January 2002 eligible to participate. Each match had a duration of 80 minutes, consisting of two halves of 40 minutes.
There was no qualification, and all entrants advanced to the final tournament. The following 12 teams from member associations of the ASEAN Football Federation entered the tournament.
The competition was played at two venues in Chonburi, Chonburi Province: Chonburi Campus Stadium and Chonburi Stadium (in Mueang Chonburi).
The top two teams of each group advanced to the semi-finals.
The teams are ranked according to points (3 points for a win, 1 point for a draw, 0 points for a loss). If tied on points, tiebreakers are applied in the following order:
In the knockout stage, the penalty shoot-outs are used to decide the winner if necessary (extra time is not used).