'Amnesiac' is the fifth studio album by Radiohead. Produced by Nigel Godrich, the album was released on 5 June 2001 through Parlophone.

Recorded in the same sessions as previous album 'Kid A' (2000), 'Amnesiac' incorporates similar influences of electronic music, 20th century classical music, jazz and krautrock. Its lyrics and artwork explore themes of memory and reincarnation influenced by ancient Greek and Egyptian mythology.

'Amnesiac' produced three singles: "Pyramid Song," "I Might Be Wrong" and "Knives Out," and debuted at number one on the UK Albums Chart and number two on the US Billboard 200. In 2012 Rolling Stone ranked the album number 320 in their updated version of The 500 Greatest Albums of All Time.