Southern boobook point out." Gould recorded local aboriginal names: "Goor-goor-da" (Western Australia), "Mel-in-de-ye" (Port Essington), and "Koor-koo" (South Australia). Alternative common names include spotted owl and brown owl. The Ngarluma people of the western Pilbara knew it as "gurrgumarlu". In the Yuwaaliyaay dialect of the Gamilaraay language of southeastern Australia, the southern boobook is . Dutch naturalist Gerlof Mees and German evolutionary biologist Ernst Mayr regarded the taxonomy of the boobook owl complex as extremely challenging, the latter remarking in 1943 that it was "one of the most difficult problems I have ever encountered". In his 1964 review of Australian owls, Mees
Southern boobook treated Australian and New Zealand boobooks, along with several taxa from Indonesia and Papua New Guinea, as one species—"Ninox novaeseelandiae"—with 16 subspecies. In his 1968 book "Nightwatchmen of the Bush and Plain", Australian naturalist David Fleay observed that the boobooks from Tasmania more closely resembled those of New Zealand than those from mainland Australia, though he followed Mees in treating them as a single species. The southern boobook was split from the Tasmanian boobook and morepork in volume 5 of the "" in 1999, though several authors, including Australian ornithologists Les Christidis and Walter Boles, continued to treat the three