The International School of Sanya (TIS; or ) is an international school in the Serenity Coast () area of Sanya, Hainan, China. It serves levels nursery through grade 12. There are currently three streams: a Nursery-Grade 12 international stream (TIS); an English/Chinese (50/50) program with American curriculum (SLS); and the Nursery-Grade 12 Chinese stream ("local"), a program using Chinese curriculum. Its campus has of space. Its governing organization is called Haiya Education Group, which own the TIS campus (and attached kindergarten "SLS-K"), and another kindergarten campus, "Golden Sun Kindergarten".
Originally the Canadian International School of Sanya (CIS; ), it was Sanya's first ever international school, opening in September 2013. It previously occupied four buildings in a campus in the Chunguang (æÂ¥å Â, "Spring Light") neighborhood. It opened during an effort by the Hainan government to attract more foreign tourists and residents.