High Quality Content by WIKIPEDIA articles! Klang Valley (Malay: Lembah Klang) is an area in Malaysia comprising Kuala Lumpur and its suburbs, and adjoining cities and towns in the state of Selangor. An alternative reference to this would be Kuala Lumpur Metropolitan Area or Greater Kuala Lumpur, though neither of these terms is used locally. It is geographically delineated by Titiwangsa Mountains to the north and east and the Strait of Malacca to the west.