Butler's corella (Cacatua pastinator butleri) is a medium-sized white cockatoo endemic to Western Australia.

Butler's corella is found in the northern and central wheatbelt of south-west Western Australia.

The corellas feed extensively on the seeds of cereal crops, the seeds of weeds such as Cape weed (Arctotheca calendula) and double gee (Emex australis), as well as the corms of onion grass (Romulea rosea) and insect larvae.

After fledging, the young birds begin to forage for themselves in 2–3 weeks but continue to be dependent on their parents for another 6 months, moving with them in family groups to feeding areas and roosts.

Because flocks sometimes cause damage by defoliating trees, by digging up lawns, sports grounds and race tracks, by chewing wiring and house fittings, and by being very noisy, the subspecies is a declared pest of agriculture.