Rasah is a federal constituency in Seremban District, Negeri Sembilan, Malaysia, that has been represented in the Dewan Rakyat since 1986.
The federal constituency was created in the 1984 redistribution and is mandated to return a single member to the Dewan Rakyat under the first past the post voting system.
As of 2020, Rasah has a population of 256,585 people.
According to the federal gazette issued on 18 July 2023, the Rasah constituency is divided into 35 polling districts.