The Koiari language is an Austronesian language spoken primarily in Papua New Guinea. It is part of the Eastern Oceanic subgroup and is used by the Koiari people, who inhabit the Central Province of the country. The language has several dialects, reflecting the diverse communities within the region. Koiari is primarily an oral language, though efforts are being made to document and preserve it. The language plays a crucial role in the cultural identity of the Koiari people, encompassing their traditions, stories, and social interactions. Understanding Koiari is essential for appreciating the rich heritage of its speakers.