2021 Northern Territory local elections

The 2021 Northern Territory local elections were held on 28 August 2021 to elect the councils of the 17 local government areas (LGAs) in the Northern Territory, Australia. Six councils also held mayoral elections.

303 candidates contested the elections to fill a total of 159 council and mayoral positions. Two councils did not have enough nominations to fill all vacancies, causing supplementary elections to be held.

A record number of voters were on the electoral roll, with an increase of more than 5,000 people compared to the 2017 elections. More than 25,000 people voted at an early voting centre.

Party changes before elections
A number of councillors joined or left parties before the 2021 elections.

Mayoral elections
Mayors in italics did not recontest their positions.

Aftermath
The Alice Springs mayoral election was decided by just two votes, the closest result that Northern Territory Electoral Commissioner Iain Loganathan said he had ever seen. Unsuccessful candidate Jimmy Cocking requested a new recount, but it was rejected by the Northern Territory Civil and Administrative Tribunal in October 2021.