Rengit is a state constituency in Johor, Malaysia, that is represented in the Johor State Legislative Assembly.
The state constituency was first contested in 1959 and is mandated to return a single Assemblyman to the Johor State Legislative Assembly under the first-past-the-post voting system.
As of 2020, Rengit has a population of 26,511 people.
According to the gazette issued on 30 March 2018, the Rengit constituency has a total of 11 polling districts.