Muara Tuang is a state constituency in Sarawak, Malaysia, that has been represented in the Sarawak State Legislative Assembly since 1969.
The state constituency was created in the 1968 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, Muara Tuang has a population of 65,026 people.
According to the gazette issued on 31 October 2022, the Muara Tuang constituency has a total of 7 polling districts.