The Steavenson River, sometimes incorrectly referred to as Steavensons River, a minor inland perennial river of the Goulburn Broken catchment, part of the Murray-Darling basin, is located in the lower South Eastern Highlands bioregion and Northern Country/North Central regions of the Australian state of Victoria. The headwaters of the Steavenson River rise on the north–western slopes of the Yarra Ranges, below Mount Edgar and descend to flow into the Acheron River near Buxton.