The
Yonaguni language (
Dunan Munui) is a
Southern Ryukyuan language spoken by around 800 people on the island of
Yonaguni, in the
Ryukyu Islands, the westernmost of the chain lying just east of
Taiwan. It is most closely related to
Yaeyama. Due to the Japanese policy on languages, the language is not recognized by the government and is instead called the .