|Location||Great Southern, Western Australia|
|Surface area||2.4 km2 (0.93 sq mi)|
Lake Altham, part of the Lake Grace System, is a wetland located in the Great Southern region of Western Australia. Situated in the Shire of Kent, the lake is part of the Western Mallee subregion of the Mallee region. It has an area of about 2.4 square kilometres (0.93 sq mi) and is one of four lakes in the area comprising a DIWA-listed wetland of national importance.
- "Lake Altham". Gazetteer of Australia online. Geoscience Australia, Australian Government.
- Beecham, Brett; Danks, Alan. "Mallee 2 (MAL2 - Western Mallee subregion)" (PDF). A Biodiversity Audit of Western Australia's 54 Biogeographical Subregions in 2002. Department of Conservation and Land Management. Retrieved 24 February 2007.
- "Lake Grace System". Australian Wetlands Database. Department of the Environment and Water Resources, Australian Government.