The painted quail-thrush (Cinclosoma ajax) is a species of bird in the family Cinclosomatidae.

It is found in New Guinea.

Its natural habitat is subtropical or tropical moist lowland forest.

The painted quail-thrush is a medium sized bird, measuring 20-25 cm (8-10 in) in length, with a usual wing span of 20-30 cm (8-10 in) It has a brown tail, crown and back, black mask with a white belly and burnt orange sides.

Males have a black throat and chest, with a white stripe on their face, the females however, have a white throat and a white eyebrow.