Quartet is the sixth studio album by the British new wave band Ultravox. The album peaked at no.6 on the UK album chart and was certified Gold by the BPI in December 1982 for 100,000 copies sold. It also peaked at #13 in Germany, and at #61 in the United States.
The album was produced by George Martin, most notable for his work with The Beatles. After three albums produced by Conny Plank, Ultravox dropped their longtime producer. Vocalist/guitarist Midge Ure explained, "It was getting a bit safe. We knew if we recorded with him again it would be great and we'd be really happy. But there would be no excitement." Martin chose to take the job because his daughter was an Ultravox fan.
Four singles were released from the album, all of which reached the UK Top 20. The band promoted the album with their "Monument Tour" in late 1982, one of the shows from which was recorded and released as an album and video in 1983.
Quartet was remastered and re-released on CD by EMI in 1998 with the B-sides to each of the album's singles as bonus tracks. Another remastered version, a 2-disc set with previously unreleased material, was released in February 2009.