- any member of the three genera (Carlito, Cephalopachus, Tarsius) of the family Tarsiidae, inhabiting Indonesia, the Philippines, and other Southeast Asian islands, characterized as a small, arboreal, nocturnal primate with velvety fur, very large eyes, a long tail, and very long hind limbs: all populations are dwindling and considered vulnerable to extinction.
- any of several nocturnal arboreal prosimian primates of the genus Tarsius, of Indonesia and the Philippines, having huge eyes, long hind legs, and digits ending in pads to facilitate climbing: family Tarsiidae
