Bangi is a small town situated on the south of the district of Hulu Langat, in Selangor, Malaysia. It is roughly situated between the towns of Kajang (9 kilometres away) and Putrajaya (formerly Prang Besar) (also 9 kilometres away), and is linked to KTM Komuter commuter train services via the Bangi Komuter station. The town is surrounded by palm oil estates; a Malaysian Palm Oil Board/UKM research station is also based close to the town.

Bangi is not to be confused with Bandar Baru Bangi, a newer and larger township several kilometres north, similar to the town only by name and located closer to Kajang.