The masked finfoot or Asian finfoot (Heliopais personatus) is a highly endangered aquatic bird that was formerly distributed throughout the fresh and brackish wetlands of the eastern Indian subcontinent, Indochina, Malaysia and Indonesia. Like the rest of the family, the African finfoot and the sungrebe, the relationship to other birds is poorly understood.
The masked finfoot is an underwater specialist with a long neck, a striking sharp beak, and lobed feet which are green. Both males and females have a black mask and eyebrow that contrasts with a white eyering and lateral cervical stripe. The rest of the neck is grey, the breast is pale and the back, wings, and tail are a rich brown. The males have an all-black chin while the females have a white chin.