2015 Regional League Division 2 Southern Region

2015 Regional League Division 2 Southern Region is the 7th season of the League competition since its establishment in 2009. It is in the third tier of the Thai football league system.

Promoted clubs
Prachuap Khiri Khan were promoted to the 2015 Thai Division 1 League.

Renamed clubs

 * Ranong renamed Ranong United.
 * Yala renamed Yala United.

Withdrawn clubs
Hat Yai have withdrawn from the 2015 campaign.

Clubs serving bans

 * Phattalung – 2015 campaign.