Klang Valley (Malay: Lembah Klang) is an urban agglomeration in Malaysia that is centered in the federal territories of Kuala Lumpur and Putrajaya, and including their adjoining cities and towns in the state of Selangor. It is the urban area of the much larger Kuala Lumpur metropolitan area, known as Greater Kuala Lumpur.
The Klang Valley is geographically delineated by the Titiwangsa Mountains to the east and the Strait of Malacca to the west. It extends to Rawang in the northwest, Semenyih in the southeast, and Klang and Port Klang in the southwest.[1] The conurbation is the heartland of Malaysia's industry and commerce.[2] As of 2022, the Klang Valley is home to roughly 9 million people.[3]