Papua New Guinea, a sovereign state in Oceania, is the most linguistically diverse country in the world. Ethnologue, among other sources, state that there are 840 living languages spoken in the country, although estimates vary due to the distinction between a language and a dialect. In 2006, Papua New Guinea Prime Minister Sir Michael Somare stated that "Papua New Guinea has 832 living languages (languages, not dialects)." 25 of those languages are officially recognized, with the country's lingua franca (and vernacular for some) being Tok Pisin, an English-based creole (although standard English is typically used in government, education, and formal writing).
Most of these are classified as indigenous Papuan languages, which form a diverse sprachbund across the island of New Guinea. There are also many Austronesian languages spoken in Papua New Guinea, most of which are classified as Western Oceanic languages, as well as some Admiralty Islands languages and Polynesian Ellicean–Outlier languages in a few outer islands. Since the late 19th century, West Germanic languages — namely English and German — have also been spoken and adapted into creoles such as Tok Pisin, Torres Strait Creole and Unserdeutsch.