The Elderslie Banksia Scrub Forest is a critically endangered scrubby woodland situated in southwestern Sydney, New South Wales, Australia.

Listed under the Environment Protection and Biodiversity Conservation Act 1999, it is a variety of stunted forest or woodland found on sandy substrates associated with deep Tertiary sand deposits, which has been reduced in extent of at least 90% of its original pre-European extent.

It lies on an area with low-nutrient, heavy clayey sands where Tertiary alluvium sit on another substrate – generally Triassic age sedimentary strata of the Wianamatta Group, around the location of Spring Farm.

Birds include Anthochaera carunculata, Cacatua galerita, Cacatua sanguinea, Cracticus tibicen, Corvus coronoides, Eolophus roseicapillus, Eopsaltria australis, Dacelo novaeguineae and Malurus cyaneus, among many others.

Mammals species present are Tachyglossus aculeatus, Petaurus breviceps, Trichosurus vulpecula, Pseudocheirus peregrinus and Pteropus poliocephalus.