Live!! +one is a live EP that was initially released only in Japan on November 1980 by the British heavy metal band Iron Maiden. All the tracks were recorded live at the Marquee Club in London on 4 July 1980. The recordings of "Sanctuary" and "Drifter" available on this EP cannot be found anywhere else although the other tracks can be found as b-sides.
In 1984 the EP was released in Greece with an expanded tracklist, but only "I've Got the Fire" was recorded at the Marquee Club. The other added tracks were taken from the Maiden Japan EP and "Prowler" was taken from the band's self-titled debut album.