The 2020 Thai League Cup was the 11th season in the second era of a Thailand's knockout football competition.

85 clubs were accepted into the tournament, and it began with the first qualification round on 22 February 2020.

The tournament has been readmitted back into Thai football after a 10-year absence.

[clarification needed] The prize money for this prestigious award was said to be around 5 million baht for the tournament winners, and 1 million baht for the second-place team.

On 5 August 2020, Football Association of Thailand cancelled the 2020 League Cup due to COVID-19 pandemic, and the main sponsor Toyota's withdrawal of support for the tournament due to the economic impact of the pandemic.