Asia (often stylised as ASIA) are a British rock band. The band were formed in 1981 as a supergroup of four members from different progressive rock bands, namely John Wetton (former bassist/vocalist of such bands as King Crimson, Family, Roxy Music, Uriah Heep, UK and Wishbone Ash), Steve Howe (guitarist of Yes), Geoff Downes (keyboardist of Yes and The Buggles) and drummer Carl Palmer (of Emerson, Lake & Palmer, The Crazy World of Arthur Brown, and Atomic Rooster).

The band have gone through many line-up changes throughout its history, but in 2006, the original line-up reunited. As a result of this, a second band called Asia Featuring John Payne exist as a continuation of John Payne's career as Asia's frontman from 1991 until Wetton's return in 2006. In 2013, Howe retired from the band in order to pursue other projects, and was replaced by guitarist Sam Coulson, completing the current lineup.