Lake Boga ( /ˈleɪk ˈboʊɡə/), a freshwater endorheic lake that is managed by Goulburn–Murray Water as a water storage, is part of the Victorian Mid Murray Storages, is located near Swan Hill in The Mallee region of Victoria, in southeastern Australia.

The 940-hectare (2,300-acre) lake is situated about 19 kilometres (12 mi) southeast of Swan Hill and adjacent to the town of the same name.

[4] During World War II, Lake Boga was used as a repair and service depot for flying boats at the Lake Boga Flying Boat Base which was established in June 1942 and closed in November 1947.

Lake Boga has a capacity of 37,794 megalitres (8.314×10^9 imp gal; 9.984×10^9 US gal) at the full supply level of 69.5 metres (228 ft) AHD and a surface area of 940 hectares (2,300 acres).

Subject to sufficient water to harvest, the lake generally will be full around November to December.