Tookoonooka is a large meteorite impact structure (astrobleme) situated in South West Queensland, Australia.

It lies deeply buried within Mesozoic sedimentary rocks of the Eromanga Basin and is not visible at the surface.

[1] Tookoonooka was discovered using seismic data collected during routine petroleum exploration and first reported in a publication in 1989,[2] with proof of the impact theory coming from the discovery of shocked quartz in drill core.

[4] The seismic data reveal a similar nearby structure of the same age referred to as Talundilly.

Another proposed paired impact structures are the larger West and East Warburton Basin structures in the nearby state of South Australia.