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 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.