The Norfolk Island Green Parrot or Norfolk Island Red-crowned Parakeet (Cyanoramphus cookii) is a species of parrot in the Psittacidae family. It is endemic to Norfolk Island. the species was once considered a subspecies of the Red-crowned Parakeet of New Zealand. Its natural habitats are subtropical or tropical moist lowland forests and plantations. It is threatened by habitat loss.

This species of parakeet was down to only 4 breeding females and 28-33 males in 1994, but its population has since rebounded to 200-300 birds. It is only found in Norfolk Island National Park and the surrounding area.