Bandar Tun Hussein Onn is a township in 11th-Mile Cheras (Batu 11 Cheras) in Bangi constituency, Selangor, Malaysia. 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.

UDA Holdings Bhd is the developer of the Bandar Tun Hussein Onn township, established in 1971 by the government with authority to develop this area. In 1989, UDA Holdings acquired a 752 acres (304 ha) piece of land in Cheras known as Bandar Tun Hussein Onn. It is known as the largest housing development in Cheras Selatan. In 1995, Bandar Tun Hussein Onn won the FIABCI Award of Distinction for Residential Property. Upon completion, the total population has increased up to 35,000, consisting of 6,000 residential units.

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).

Local Authority - Majlis Perbandaran Kajang as a local authority has an office in BTHO, located at Jalan Suasana 2/7.

Fire Station - A new fire station was built at Jalan Suakasih - Persiaran Suakasih intersection towards SILK Highway.

Banks - Town Park 1 house many banking facilities such as recently opened Tabung Haji in 2018, Citibank, Hong Leong and Pusat Zakat Selangor. Meanwhile, Maybank, CIMB, and HSBC are located adjacent to the township in Dataran Cheras of the Cheras Perdana township.

Others - There are many other things in Bandar Tun Hussein Onn such as Lake Valley which has a 1 Mile walk and play grounds. Other than that, there are many other play grounds near houses such as the one in Jalan Suasana 2/5 and Cheras Perdana.

There is one hospital named Columbia Asia giving medical services and 24-hours emergency response. The nearest public hospital is situated in Kajang. A new public health clinic (Klinik Kesihatan Bandar Tun Hussien Onn) was recently opened in April 2018, under Ministry of Health located on Jalan Suadamai.**

There are four schools in Tun Hussein Onn:

• Sekolah Kebangsaan Bandar Tun Hussein Onn.
• Sekolah Kebangsaan Bandar Tun Hussein Onn 2.
• Sekolah Menengah Kebangsaan Bandar Tun Hussein Onn 2.
• Sekolah Menengah Agama Tinggi Al-Rahman.
• Sekolah Rendah Islam Al-Rahman

• Bandar Tun Hussein Onn Mosque - Officially opened by His Royal Highness Sultan of Selangor in June 2016. (UDA Land completed the building's construction in April 2013).
• Surau Al-Amin (Located in Suasana zone)
• Surau As-Siddiq (Located in Suadamai zone)
• Surau Al-Ansar (Located in Suakasih zone)
• Surau Al-Fathonah (Located in Suakasih Apartment compound)

Suraus is conveniently located in the respective housing zones, Suasana/Suakasih/Suadamai to serve residents in each community.

Bandar Tun Hussein Onn is primarily served by the Grand Saga Expressway (concurrent with Federal Route 1). It is connected to SILK Highway to Mines/UPM and Sungai Long, Kajang, and Semenyih. The local access route is connected to Alam Damai township via Jalan Suadamai.

 KG29  MRT Bandar Tun Hussein Onn, opened on 17 July 2017. MRT feeder bus provides transportation services along Jalan Sudamai and Persiaran Suasana to MRT Sri Raya. Car parks are abundantly provisioned at the Bandar Tun Hussein Onn station.

• BandarTunHusseinOnn.com
• Bandar Tun Hussein Onn MRT Station
• Kajang Municipal Council - administrator of Bandar Tun Hussein Onn
• https://web.archive.org/web/20170509211701/http://ww1.utusan.com.my/utusan/Ekonomi/20130708/ek_21/UDA-Holdings-bina-masjid-Bandar-Tun-Hussein-Onn
• http://www.mpkj.gov.my/ms/rakyat/perkhidmatan/kaunter-kaunter
• http://www.jknselangor.moh.gov.my/index.php/ms/carian-fasiliti/535-klinik-kesihatan/392-klinik-kesihatan-bandar-tun-hussien-onn
• http://www.kkr.gov.my/ms/node/34761
• https://www.tabunghaji.gov.my/ms/pejabat-cawangan-th/th-cheras
• https://www.propwall.my/insight/1233/lake_valley
• https://web.archive.org/web/20180502140504/http://www.uda.com.my/beginnings.php

3°02′33″N 101°44′40″E / 3.0423862°N 101.7444028°E / 3.0423862; 101.7444028