The 2008–09 season was Kilmarnock's tenth consecutive season in the Scottish Premier League, having competed in it since its inauguration in 1998–99.

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

Kilmarnock finished eighth in the Scottish Premier League with 44 points.

[1] They reached the Quarter-Final of the League Cup, losing to Celtic[2] and the fourth round of the Scottish Cup, losing to Inverness.

[3] Win Draw Loss Postponed