Lake Bennett is a small artificial freshwater lake located 80 km south of Darwin, Northern Territory, Australia within the Coomalie Shire. The lake is set in 4.45 square kilometres of tropical wilderness. It was created in 1980 following the construction of a dam by George and Ken Bennett on a property they had purchased the previous year.
It has been stocked with barramundi since 2004. In recent times some sub-division of the lands around the lake foreshores has occurred with cabins and houses being built around the northern edge, although the permanent population is very small. These dwellings are largely used as "weekenders" or retreats.