Glenlusk is a rural locality in the local government areas (LGA) of Derwent Valley (6%) and Glenorchy (94%) in the South-east and Hobart LGA regions of Tasmania. The locality is about west of the town of Glenorchy. The 2016 census recorded a population of 200 for the state suburb of Glenlusk. It is a semi-rural suburb of Hobart. It is west of Chigwell.
Glenlusk was gazetted as a locality in 1961.
Sorell Creek forms part of the western boundary. Most of the boundaries are survey lines or ridge lines.
Route C615 (Glenlusk Road / Molesworth Road) runs through from east to west after following the eastern boundary for a short distance.