The Refaluwasch people are a Micronesian ethnic group who originated in Oceania, in the Caroline Islands, with a total population of over 8,500 people in the Northern Mariana Islands. They are also known as Remathau in the Yap's outer islands. The Carolinian word means "People of the Deep Sea." It is thought that their ancestors may have originally immigrated from Asia and Melanesia to Micronesia around 2,000 years ago. Their primary language is Carolinian, called Refaluwasch by native speakers, which has a total of about 5,700 speakers. The Refaluwasch have a matriarchal society in which respect is a very important factor in their daily lives, especially toward the matriarchs. Most Refaluwasch are of the Roman Catholic faith.

The Micronesians or Micronesian peoples are various closely related ethnic groups native to Micronesia, a region of Oceania in the Pacific Ocean. They are a part of the Austronesian ethnolinguistic group, which has an Urheimat in Taiwan.