The Southern Palawan tree squirrel (Sundasciurus steerii) is a species of rodent in the family Sciuridae. It is endemic to the Philippines. Its natural habitat is subtropical or tropical dry forests.
- Thorington, R. W. Jr. and R. S. Hoffman. 2005. Family Sciuridae. pp. 754–818 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore.