WBeginnings: The Best of the Early Years is a greatest hits compilation album by Irish group Clannad. The albums contains tracks from most of the group's 1970s albums, and was released in August 2008.
WThe Best of Clannad: In a Lifetime is a greatest hits compilation album by Irish folk group Clannad. It contains two new tracks, "Christmas Angels" and "What Will I Do", the latter of which is on the soundtrack to the Kevin Costner film Message in a Bottle.
WCeltic Themes: The Very Best of Clannad is a greatest hits compilation album by Irish group Clannad. It was released to coincide with their reunion UK tour in early 2008.
WThe Collection is a compilation album by Irish musical group Clannad, released in 1986 by K-tel International Ltd. It consists of their greatest hits dating back to 1972, with the tracks featuring a mix between pop rock influenced songwriting done by the band in addition to traditional folk music. The album saw a 1987 release on compact disc, which include a comment on the back cover by Irish journalist Tommie Gorman stating: "freed at least by recognition, their creative instincts have found a new strength."
WAn Díolaim is a compilation album by the Irish folk group Clannad. It consists of fourteen of their traditional recordings and was released by Gael Linn Records.
WIn a Lifetime is a greatest hits compilation album by Irish group Clannad. The albums contains two new tracks, "A Celtic Dream" and "Who Knows ", the first recorded by the group since the passing of member Padraig Duggan. Released on 3 April 2020, the album was to coincide with the band's 50th anniversary as a group and they subsequently embarked on a world tour. The In a Lifetime tour was postponed due to the COVID-19 pandemic.
WA Magical Gathering: The Clannad Anthology is a greatest hits compilation album by Clannad, released by Rhino Records in 2002. With performances in English and Gaelic, Rhino’s two-disc release is the first-ever career-spanning collection from the group. With 34 tracks released between 1973 and 1998, it includes signature songs like "Theme from Harry's Game" and "In a Lifetime".
WPastpresent is a compilation album by Irish folk group Clannad, released in 1989. It is a collection of selected songs recorded by the band from 1982 up to 1989, including two new songs exclusive to this release – "The Hunter" and "World of Difference".
WThemes is a compilation album released in 1992 by the Irish music group Clannad.