The 2020–21 season is Kilmarnock's eighth season in the Scottish Premiership, and their 28th consecutive season in the top flight of Scottish football.

Kilmarnock also competed in the Scottish League Cup and the Scottish Cup.

Kilmarnock began the 2020–21 season under the management of Alex Dyer who signed a two-year contract in June 2020, following his spell in temporary charge.

[1] In the League Cup, Kilmarnock were drawn in Group E alongside Clyde, Dumbarton, Dunfermline Athletic and Falkirk.

The competition is scheduled to start in October 2020.