Greatest Hits is the first compilation album by English boy band Five. It was released in the United Kingdom through RCA Records on 19 November 2001, just three months after the release of their third studio album, Kingsize.
The album features thirteen of the band's fifteen singles (excluding "How Do Ya Feel" and "Don't Fight It Baby"), as well as two popular B-sides, two new remixes, and the previously unreleased "Set Me Free", which was recorded during the Kingsize album sessions. The album peaked at number nine on the UK Albums Chart, as well as being certified platinum by the BPI.
Although the band's previous album, Kingsize, had been released only three months earlier, Greatest Hits was rush-released due to the imminent split of the band. Scott Robinson revealed on the ITV2 series The Big Reunion that the album's release came after Sean Conlon suffered a mental breakdown and threatened to quit the band as he was unable to cope. Alongside the release of the album, a VHS compilation containing all of the band's music videos, as well as behind the scenes footage, and a live video for "Two Sides to Every Story".
Two singles, "Closer to Me" and "Rock the Party", were released to promote the album. The latter was not released as a single in its own right in the United Kingdom, but formed a double A-side on CD2 of "Closer to Me". Both songs originated from Kingsize.
The Japanese version of the album replaced the B-side "Inspector Gadget" with the promotional single "How Do Ya Feel" and added a remix of "Let's Dance". The album was re-released on 7 June 2003. The album made a return to the top ten of UK Albums Chart in 2013 following the band's reformation on The Big Reunion.