Bandar Tun Hussein Onn is a township in 9th-Mile Cheras (Batu 9 Cheras) in Hulu Langat constituency, Selangor, Malaysia. It was named after the third Malaysian Prime Minister, Tun Hussein Onn (in office 1976–1981). It is primarily a residential area, established in the early 1990s. It is situated about 13 km southeast of central Kuala Lumpur and 7.5 km north of Kajang. Bandar Tun Hussein Onn is resided by 20,000 to 35,000 people or 6,000 housing units, where 80 per cent of the residents are Muslim (in 2013).