S'gaw Karen or S'gaw K'nyaw, commonly known simply as Karen, is a Sino-Tibetan language spoken by the S'gaw Karen people of Myanmar and Thailand. A Karenic branch of the Sino-Tibetan language family, S'gaw Karen is spoken by over 2 million people in Tanintharyi Region, Ayeyarwady Region, Yangon Region, and Bago Region in Myanmar, and about 200,000 in northern and western Thailand along the border near Kayin State. It is written using the S'gaw Karen alphabet, derived from the Burmese script, although a Latin-based script is also in use among the S'gaw Karen in northwestern Thailand. Additionally, the Kwekor script is used in Hlaingbwe Township.
Various divergent dialects are sometimes seen as separate languages: Paku in the northeast, Mopwa (Mobwa) in the northwest, Wewew, and Monnepwa.