The Eclectus Parrot, Eclectus roratus, is a parrot native to the Solomon Islands, Sumba, New Guinea and nearby islands, northeastern Australia and the Maluku Islands (Moluccas).

It is unusual in the parrot family for its extreme sexual dimorphism of the colours of the plumage; the male having a mostly bright green plumage and the female a mostly bright red and purple/blue plumage.

Joseph Forshaw, in his book Parrots of the World, noted that the first European ornithologists to see Eclectus Parrots thought they were of two distinct species. Large populations of this parrot exist in Papua New Guinea, where they are sometimes considered pests for eating fruit off trees. Their bright feathers are also used by native tribes people as decorations.

The Eclectus Parrot is unusual in the parrot family for its marked sexual dimorphism in the colours of the plumage.

The male is mostly bright green with blue primaries, and red flanks and underwing coverts, while the female is mostly red with a blue abdomen and nape in most subspecies, purple abdomen and nape in the subspecies from the north and central Maluku Islands (roratus and vosmaeri), and red abdomen and nape in the subspecies from Sumba and Tanimbar Islands (cornelia and riedeli).

Females of several subspecies have a yellow-tipped tail; taken to the extreme in riedeli and vosmaeri which also have yellow undertail coverts.

The upper mandible of the adult male is orange at the base fading to a yellow towards the tip, and the lower mandible is black. The beak of the adult female is all black. Adults have yellow to orange irises and juveniles have dark brown to black irises. The upper mandible of both and male and female juveniles are brown at the base fading to yellow towards the biting edges and the tip.