Group B of the men's football tournament at the 2025 SEA Games will be played from 4 to 11 December 2025. [1] The group consisted of Vietnam, Malaysia, and Laos. [2]
| Draw position | Team | SEA Games appearance | Last appearance | Previous best performance |
|---|---|---|---|---|
| B1 |  Vietnam | 24th | 2023 | Gold medalists (1959 [a] , 2019, 2021) |
| B2 |  Malaysia | 33rd | 2023 | Gold medalists (1961 [b] , 1977, 1979, 1989, 2009, 2011) |
| B3 |  Laos | 22nd | 2023 | Bronze medalist (1969) |
| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Qualification |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Vietnam | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | Advance to knockout stage |
| 2 | Malaysia | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | Possible knockout stage based on rankings |
| 3 | Laos | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Fair play points would have been used as a tiebreaker if the overall and head-to-head records of teams were tied. These were calculated based on yellow and red cards received in all group matches as follows:
Only one of the above deductions could be applied to a player in a single match.
| Team | Match 1 | Match 2 | Match 3 | Points | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |  |  | | | | | | | | | | ||
| Vietnam | 0 | ||||||||||||
| Malaysia | 0 | ||||||||||||
| Laos | 0 | ||||||||||||