| An Ancient Lie | |
| Type: | Album |
| Artist: | Mach One |
| Cover: | An Ancient Lie mach one.jpeg |
| Released: | 2002 |
| Recorded: | 1982–1984 |
| Studio: | Various Studios, London |
| Genre: | Neo-prog |
| Length: | 55:00 |
| Label: | Granite Bap |
| Prev Title: | Lost for Words |
| Prev Year: | 1983 |
| Next Title: | Could This Have Been Our Prehistory |
| Next Year: | 1985 |
An Ancient Lie is a compilation of prior releases by the British progressive rock band Mach One. Released in 2002, it included songs like "Into The Pit" from their 1983 LP release Lost For Words (distributed via Pinnacle Records), "No Time To Sleep" from their 1982 cassette release Six of One plus some never before released material such as "Machine In White" recorded in 1984 just before they disbanded.
The album cover featured artwork provided by Glenn Fabry, better known for his work as a British Comics artist.