Extended Ultravox is an Ultravox compilation of 12" extended versions of various Ultravox singles from the years 1980–1986 (the period with Midge Ure as frontman). The album was released in 1998.
The tracks on the discs are all extended mixes of Ultravox singles, available on their respective 12" versions. The notable exception to this is "Serenade" – a non-single track from Quartet. The "special re-mix" of this track was previously available on a remix LP available with limited copies of The Collection in 1984.
The rest of the remixes and extended versions that Ultravox made are available on the Rare compilations or as bonus tracks on various Ultravox album CD re-issues.