The Mangrove Honeyeater (Lichenostomus fasciogularis) is a species of bird in the honeyeater family Meliphagidae. The species was once considered to be conspecific with the Varied Honeyeater, but it is now treated as a separate species. These two species form a superspecies with the Singing Honeyeater.

It is endemic to Australia, where it is restricted to the eastern coast from Townsville in Queensland to northern New South Wales. The species has been expanding its range southward in recent years. The mangrove honeyeater is generally locally common over most of its range, but is rarer in the south.

Its natural habitat is subtropical or tropical mangrove forests.