The 2020 Thailand Champions Cup was the 4th Thailand Champions Cup, an annual football match contested by the winners of the previous season's Thai League 1 and Thai FA Cup competitions.

It was sponsored by Government Savings Bank (Omsin Bank), and known as the Omsin Thailand Champions Cup[1] (Thai: ออมสิน ไทยแลนด์แชมเปียนส์คัพ) for sponsorship purposes.

The match was played at SCG Stadium, Nonthaburi and contested by 2019 Thai League 1 champions Chiangrai United, and Port as the champions of the 2019 Thai FA Cup.

Assistant referees: Pattarapong Kidsatid Thanat Chucheun Fourth official: Wiwat Jampa-on Assistant VAR: Sivakorn Pu-udom Rawut Nakrit