The spot-breasted thornbird (Phacellodomus maculipectus) is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae.

[4] The spot-breasted thornbird is found from the Bolivian departments of Cochabamba and Santa Cruz south into northern Argentina as far as La Rioja Province.

It captures prey by gleaning from the ground or from vegetation as high as the forest's understorey.

[4] The spot-breasted thornbird breeds in the austral spring and summer, starting in September.

It builds a cylindrical nest of thorny sticks that can be about 30 cm (1 ft) high and lines an interior chamber with grass.

It has a fairly large range and an unknown population size that is believed to be stable.