Fannie Bay is an electoral division of the Legislative Assembly in Australia's Northern Territory.

This was illustrated in 1995, when Country Liberal Party Chief Minister Marshall Perron resigned, only to be replaced by the Labor Party's Clare Martin—who six years later herself became Chief Minister while still representing the electorate.

Michael Gunner narrowly retained the seat for Labor, and went on to become Opposition Leader in 2015.

He led Territory Labor to a record victory in 2016, becoming the third person to become Chief Minister while holding Fannie Bay.

On 27 July 2022, Michael Gunner announced his resignation from politics as the Member for Fannie Bay, triggering a by-election in the seat to be held on 20 August 2022.