Jelebu is a district of Negeri Sembilan. It is bordered by Selangor to the west, Pahang to the north, and the Negeri Sembilan districts of Seremban, Kuala Pilah and Jempol to the south. The name "Jelebu" means haze or smog.
Jelebu covers an area of 1,349 sq km. It is divided into eight counties called mukim. They are Glami Lemi, Kenaboi, Kuala Klawang, Peradong, Pertang, Triang Hilir, Ulu Klawang and Ulu Triang.