Badung is a regency of Bali, Indonesia. Its regency seat is in the upland town of Mangupura. It covers districts to the west of the provincial capital of Denpasar, and it has a land area of 418.52 km.
The regency had a population of 548,191 at the 2020 Census. It has undergone a population boom in recent decades (although not between 2010 and 2020), and has grown into the largest of the suburban regions of Greater Denpasar. It covers Bali’s most heavily populated tourist regions, including Kuta, Legian, Seminyak, Jimbaran, Nusa Dua, Canggu, Uluwatu, Badung, and Mengwi. The northern part of the regency is relatively unpopulated, but the part near the coast and west of Denpasar from Jimbaran and up to Canggu is heavily populated. Ngurah Rai International Airport is located within the Regency.