Uneapa (often called "Bali", natively Uniapa) is an Oceanic language spoken by about 10,000 people on the small island of Bali (Uneapa), north of West New Britain in Papua New Guinea.
Uneapa is one of the most conservative Oceanic languages, having retained most of Proto-Oceanic's final consonants with an echo vowel, such as *Rumaq 'house' > rumaka and *saqat 'bad' > zaɣata.
Both names can come from a proto-form *Uniap or *Uneap, reflecting the addition of an echo vowel in Uneapa and the regular loss of final consonants in Vitu.
Uneapa, together with neighboring Vitu, forms a subgroup within the Meso-Melanesian cluster of the Oceanic languages.
However, there are some differences, particularly in their phonemic inventories, retention of final consonants (which is lost in Vitu), pronoun systems, and word choices.