2015 Regional League Division 2 Bangkok Metropolitan 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.
Thai Honda were promoted to the 2015 Thai Division 1 League.
Raj-Vithi and Samut Prakan United have withdrawn from the 2015 campaign.
BU Deffo, Dome and Army F.C. joined the newly expanded league setup.
Kasetsart University is returning to the league after a 1-year break.