Iskandar Malaysia, formerly known as Iskandar Development Region (IDR) and South Johor Economic Region (SJER) is the main southern development corridor in Johor, Malaysia. The Iskandar Malaysia was established on 30 July 2006. The project is administered by Iskandar Regional Development Authority (IRDA) and was named after the late Sultan of Johor, Almarhum Sultan Iskandar.
The development region encompasses an area of 2,217 square kilometers covering the city of Johor Bahru and the adjoining towns of Pontian, Senai, Pasir Gudang and the construction of a new administrative capital in Nusajaya. Johor Bahru District is included in its entirety, as are parts of the district of Pontian. Five local planning authorities have jurisdiction over the covered area, including Majlis Bandaraya Johor Bahru (Johor Bahru City Council), Majlis Perbandaran Johor Bahru Tengah (Johor Bahru Tengah Municipal Council), Majlis Perbandaran Pasir Gudang (Pasir Gudang Municipal Council), Majlis Perbandaran Kulai (Kulai Municipal Council), and Majlis Daerah Pontian (Pontian District Council).