Humpty Doo is a town in Australia's Northern Territory, situated just south of the Arnhem Highway, approximately 40 km from Darwin. At the 2016 census, Humpty Doo had a population of 4,313 people. Its local government area is Litchfield Municipality. The town is a popular stopping point for tourists travelling between Darwin and Kakadu National Park, and boasts many attractions of its own. The main industries are agriculture and tourism; however, most residents commute to Darwin or Palmerston for work, and many regard it as a dormitory town.

Darwin is the capital city of the Northern Territory, Australia. The city has nearly 53% of the Northern Territory's population, with 139,902 at the 2021 census. It is the smallest, wettest, and most northerly of the Australian capital cities and serves as the Top End's regional centre.