The forth season of the Inter-Provincial Twenty20 was renamed the Sri Lankan T20 Premier League. The teams were renamed along with the inclusion of two extra provinces. The Sri Lankan T20 Premier League will allow international players to play.
As such, the tournament will have a different format from previous seasons, featuring five teams and being held sometime between July and September 2011. The Sri Lanka Premier League was scheduled to replace the Inter-Provincial Twenty20.
|Basnahira North elevens|
Western Province North
|R. Premadasa Stadium||ChamindaVaas|
|Basnahira South elevens|
Western Province South
|Sinhalese Sports Club Ground||TillakaratneDilshan|
|Pallekele International Cricket Stadium||Kumar Sangakkara|
|Galle International Stadium||SanathJayasuriya|
North Western Province
|Welagedara Stadium||Jehan Mubarak|