The 2016 Indian Super League season was the third season of the Indian Super League, the football league, since its establishment in 2013. The season featured eight teams again, each playing 14 matches during the regular season before the finals. The regular season began on 1 October and ended on 4 December. The finals began on 10 December and concluded with the final on 18 December. The defending champions coming into the season were Chennaiyin.