Tsat (also known as Utsat, Utset, Huíhui, or Hainan Cham, ) is a language spoken by 4,500 people in Yanglan and Huixin , two villages on the outskirts of near Sanya, Hainan, China by the Utsuls. Tsat is a member of the Malayo-Polynesian group within the Austronesian language family, and is one of the Chamic languages originating on the coast of present-day Vietnam.