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.^[1] Vietnam won the tournament after beating Thailand 4–2 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.

Team	Association	App	Previous best performance
Australia	FF Australia	6th	Winners (2008, 2016)
Brunei	FA Brunei DS	6th	Group stage (5 times)
Cambodia	FF Cambodia	8th	Fourth place (2016)
Indonesia	FA Indonesia	8th	Runners-up (2013)
Laos	Lao FF	10th	Runners-up (2002, 2007, 2011)
Malaysia	FA Malaysia	9th	Winners (2013)
Myanmar	Myanmar FF	9th	Winners (2002, 2005)
Philippines	Philippine FF	6th	Group stage (5 times)
Singapore	FA Singapore	8th	Fourth place (2008, 2011)
Thailand (H)	FA Thailand	8th	Winners (2007, 2011, 2015)
Timor-Leste	FF Timor-Leste	5th	Third place (2010)
Vietnam	Vietnam FF	10th	Winners (2006, 2010)

The competition was played at two venues in Chonburi, Chonburi Province: Chonburi Campus Stadium and Chonburi Stadium (in Mueang Chonburi).

Pot 1	Pot 2	Pot 3	Pot 4	Pot 5	Pot 6
Australia (1)  Vietnam (2)	Thailand (3)  Cambodia (4)	Laos (5)  Malaysia (6)	Myanmar (7)  Timor-Leste (8)	Singapore (9)  Brunei (10)	Philippines (11)  Indonesia (unranked)

The top two teams of each group advanced to the semi-finals.

Tiebreakers^[2]

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:

1. Goal difference in all the group matches;
2. Greater number of goals scored in all the group matches;
3. Result of the direct match between the teams concerned;
4. Kicks from the penalty mark if the teams concerned are still on the field of play.
5. Lowest score using Fair Play Criteria;
6. Drawing of lots.

• All matches held in Thailand.
• All times are local, UTC+7.

Pos	Team	Pld	W	D	L	GF	GA	GD	Pts	Qualification
1	Thailand (H)	5	5	0	0	8	2	+6	15	Knockout stage
2	Australia	5	4	0	1	24	6	+18	12
3	Myanmar	5	2	1	2	6	8	−2	7
4	Laos	5	2	0	3	7	9	−2	6
5	Indonesia	5	1	1	3	9	13	−4	4
6	Singapore	5	0	0	5	0	16	−16	0

---

---

---

---

Pos	Team	Pld	W	D	L	GF	GA	GD	Pts	Qualification
1	Vietnam	5	5	0	0	16	2	+14	15	Knockout stage
2	Malaysia	5	4	0	1	11	3	+8	12
3	Cambodia	5	2	0	3	8	8	0	6
4	Brunei	5	1	2	2	3	5	−2	5
5	Philippines	5	1	1	3	2	13	−11	4
6	Timor-Leste	5	0	1	4	0	9	−9	1

---

---

---

---

In the knockout stage, the penalty shoot-outs are used to decide the winner if necessary (extra time is not used).

	Semi-finals				Final
	20 July – Chonburi
	Thailand	1
					22 July – Chonburi
	Malaysia	0
					Thailand	0 (2)
	20 July – Chonburi
					Vietnam (p)	0 (4)
	Vietnam	2
	Australia	0
					Third place match
					22 July – Chonburi
					Malaysia	2
					Australia	3

2017 AFF U-15 Championship Winners
Vietnam 3rd title

5 goals

4 goals

3 goals

2 goals

1 goal

1 own goal

Pos	Team	Pld	W	D	L	GF	GA	GD	Pts	Final result
1	Vietnam	7	6	1	0	18	2	+16	19	Champion
2	Thailand	7	6	1	0	9	2	+7	19	Runner-up
3	Australia	7	5	0	2	27	10	+17	15	Third place
4	Malaysia	7	4	0	3	13	7	+6	12	Fourth place
5	Myanmar	5	2	1	2	6	8	−2	7	Eliminated in group stage
6	Cambodia	5	2	0	3	8	8	0	6
7	Laos	5	2	0	3	7	9	−2	6
8	Brunei	5	1	2	2	3	5	−2	5
9	Indonesia	5	1	1	3	9	13	−4	4
10	Philippines	5	1	1	3	2	13	−11	4
11	Timor-Leste	5	0	1	4	0	9	−9	1
12	Singapore	5	0	0	5	0	16	−16	0