The Scaly-headed Parrot (Pionus maximiliani) is a species of bird in the Psittacidae family, the true parrots. It is also called Scaly-headed Pionus, Maximilian Pionus, Maximilian Parrot, Maximilian's Pionus, or Maximilian's Parrot.

It is found in the cerrado and caatinga of central-east and northeast Brazil; also Bolivia, Paraguay, and northern regions of Argentina. Its natural habitats are subtropical or tropical dry forests, subtropical or tropical moist lowland forests, and subtropical or tropical moist montanes.