The 2018 Thai League Cup is the 9th season in the second era of a Thailand's knockout football competition.

82 clubs were accepted into the tournament, and it began with the first qualification round on 28 February 2018, and concluded with the final on 20 October 2018.

The prize money is not the only benefit of this cup, the team winning the fair play spot will get a Hilux Vigo.

The winner would have qualified for the 2018 Mekong Club Championship final and the 2019 Toyota Premier Cup.

It was played at the Thammasat Stadium in Pathum Thani, Thailand on 20 October 2018.