The Duchess Lorikeet, Lori De Margaret, Lori De Marguerite, or Lori De Margarita (Charmosyna margarethae) is a species of parrot in the Psittacidae family. It is found in Papua New Guinea and Solomon Islands. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical moist montanes, and plantations . It is threatened by habitat loss.