Clone is the fourth studio album by British progressive metal band Threshold, released in 1998. This album is the first to feature longtime singer Andrew "Mac" McDermott and the final album to feature drummer Mark Heaney. In October 2012 Nuclear Blast released a "Definitive Edition", including three bonus tracks.

The album also comes closer than any other by the band to presenting a loose storyline through its songs, describing how the genetic manipulation of humans leads to the development of telepathy, and how these enhanced humans leave the earth to colonize other planets, eventually returning to Earth centuries later.

UK Planet Rock (radio station) DJ Darren Redick features on the introduction to the song 'Goodbye Mother Earth'.

The 2012 reissue contains three bonus tracks:

Definitive Edition bonus tracks:

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