The Tiwi Islands Region is a local government area (LGA) of the Northern Territory, Australia.

The LGA covers an area of 7,483 square kilometres (2,889 sq mi) and had an estimated population of 2,753 in June 2018, and is governed by the Tiwi Islands Regional Council, formerly Tiwi Islands Shire Council.

The intention of the reform was to improve and expand the delivery of services to towns and communities across the Northern Territory by establishing eleven new shires.

[2] The Tiwi Islands Regional Council is divided into three wards: Bathurst, Milikapiti and Pirlangimpi.

The council is governed by 12 councillors, six from Bathurst Ward and three each from the Milikapiti and Pirlangimpi Wards:[5] Land within the Tiwi Islands Region was divided during 2007 into bounded areas for the purpose of creating an address for a property.