Simpang Jeram is a state constituency in Johor, Malaysia, that is represented in the Johor State Legislative Assembly.
The state constituency was first contested in 2018 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, Simpang Jeram has a population of 66,860 people.
According to the federal gazette issued on 30 March 2018, the Simpang Jeram constituency is divided into 13 polling districts.