Asajaya is a state constituency in Sarawak, Malaysia, that has been represented in the Sarawak State Legislative Assembly since 1991.
The state constituency was created in the 1987 redistribution and is mandated to return a single member to the Sarawak State Legislative Assembly under the first past the post voting system.
As of 2020, Asajaya has a population of 20,017 people.
According to the gazette issued on 31 October 2022, the Asajaya constituency has a total of 19 polling districts.