The locality name is derived from town and parish, which in turn was a pastoral run name leased by naturalist Charles Coxen in the 1860s. The name is presumed to be from the Mandandanji language, wallu meaning plenty and billa meaning jew fish (possibly Argyrosomus japonicus).
- Australian Bureau of Statistics (27 June 2017). "Wallumbilla South (SSC)". 2016 Census QuickStats. Retrieved 20 October 2018.
- "Wallumbilla South - locality in Maranoa Region (entry 49161)". Queensland Place Names. Queensland Government. Retrieved 2 November 2019.