The red-collared myzomela (Myzomela rosenbergii ) is a species of bird in the family Meliphagidae.It is found in New Guinea. The long-billed myzomela (M. longirostris ) of Goodenough Island was formerly considered conspecific, but was split as a distinct species by the IOC in 2021.
Its natural habitat is subtropical or tropical moist montane forests.