2016 Football Division 3

The 2016 Football Division 3 is the 1st season of the League competition since its establishment in 2016. It is in the fourth tier of the Thai football league system.

Format
Group stage: A total 13 clubs will be divided into four groups of three clubs except group 4 which has four clubs to play round-robin matches at a neutral venue. The best two clubs of each group will qualify to the knock-out stage.

Knock-out stage: A total of 8 clubs which has qualified from the group stage will play single-elimination stage until there are only two finalists of the tournament.

Format
Group stage: A total 10 clubs will be divided into four groups of three clubs except group 3 which has four clubs to play round-robin matches at a neutral venue. The best two clubs of group A and B, The best three clubs of group C and The best points of 3rd position in group A and B will qualify to the knock-out stage.

Knock-out stage: A total of 8 clubs which has qualified from the group stage will play single-elimination stage until there are only two finalists of the tournament.

Format
Group stage: A total 21 clubs will be divided into four groups of three clubs except group 7 which has four clubs to play round-robin matches at a neutral venue. The best clubs of group A and G qualify to Quarter-finals round of the knock-out stage. The best two clubs of group B, C, D, E, F and runner-up of group A and G will qualify to Second round of the knock-out stage.

Knock-out stage: A total of 14 clubs which has qualified from the group stage will play single-elimination stage until there are only two finalists of the tournament.

Format
Group stage: A total 54 clubs will be divided into four groups of three clubs except group 18 which has four clubs to play round-robin matches at a neutral venue. The best clubs of group A and G qualify to Quarter-finals round of the knock-out stage. The best clubs of group B, C, E, F, G and H, The best two clubs of group A, D, I, J, K, L, M, N, O, P, Q and R will qualify to third round of the knock-out stage. Runner-up of group E, F, G and H will qualify to second round of the knock-out stage.

Knock-out stage: A total of 18 clubs which has qualified from the group stage will play single-elimination stage until there are only two finalists of the tournament.

Venue Stadium and locations (2016)
All matches played in Wiang Sa District, Surat Thani

Qualification format
All four teams played a one-legged round-robin match. The best two teams advanced to the final round, and the winner of the final round was promoted to 2017 Thai Division 2 League.

Champions list

 * Promoted to 2017 Thai League 4