The Kerala State Film Award for Best Actor is an award, begun in 1969, presented annually at the Kerala State Film Awards of India to an actor for best performance in a Malayalam film. Until 1997, the awards were managed directly by the Department of Cultural Affairs of the Government of Kerala. Since 1998, the awards have been constituted by the Kerala State Chalachitra Academy, an autonomous, non-profit institution functioning under the Department of Cultural Affairs. The awardees are decided by a jury constituted every year. They are announced by the Minister for Cultural Affairs and are presented by the Chief Minister.

The Kerala State Film Awards are the film awards for a motion picture made in Kerala. The awards started in 1969 by the Department of Cultural Affairs, Government of Kerala and since 1998 the awards have been bestowed by Kerala State Chalachitra Academy on behalf of the Department of Cultural Affairs.