Ian McDonald

• The Cheerful Insanity of Giles, Giles and Fripp (1968) (1992 CD reissue has bonus track, "Under The Sky," which McDonald played acoustic guitar/flute, sang vocals and co-wrote with Peter Sinfield)
• The Brondesbury Tapes (1968 demo recordings, released 2001) (McDonald contributed clarinet, flute, guitar, saxophone and vocals)
• Metaphormosis (2001) (Edited in vinyl only)

Estudioko diskoak:

• In the Court of the Crimson King (#28 US, #5 UK) (1969)
• Red (#66 US, #45 UK) (1974) (McDonald played alto saxophone as a guest instrumentalist)

Bildumak eta zuzeneko diskoak:

• A Young Person's Guide to King Crimson (1976)
• The Compact King Crimson (1986)
• Heartbeat: The Abbreviated King Crimson (1991)
• Frame by Frame: The Essential King Crimson (1991)
• Sleepless: The Concise King Crimson (1993)
• Epitaph (1969 live recording) (1997)
• Live at the Marquee (1969 live recording) (1998)
• Cirkus: The Young Persons' Guide to King Crimson Live (1999)
• The Beginners' Guide to the King Crimson Collectors' Club (2000)
• Live in Hyde Park (1969 live recording) (2000)
• Live at Fillmore East (1969 live recording) (2004)
• The 21st Century Guide to King Crimson - Volume One - 1969–1974 (2004)
• The Condensed 21st Century Guide to King Crimson (2006)
• 40th Anniversary Tour Box (2008)
• The Elements of King Crimson (2014)

• McDonald and Giles (1970)

Estudioko diskoak :

• Foreigner (#4 US) (1977)
• Double Vision (#3 US, #32 UK) (1978)
• Head Games (#5 US) (1979)

Bildumak :

• Records (#10 US, #58 UK) (1982)
• The Very Best ... and Beyond (#123 US, #19 UK) (1992)
• Classic Hits Live/Best Of Live (1993)
• JukeBox Heroes: The Best Of (1994)
• The Best of Ballads – I Want to Know What Love Is (1998)
• The Platinum Collection (1999)
• Hot Blooded and Other Hits (2000)
• Jukebox Heroes: The Foreigner Anthology (2000)
• Complete Greatest Hits (#80 US) (2002)
• The Definitive (#33 UK) (2002)
• Hot Blooded and Other Hits (2004)
• The Essentials (2005)
• The Definitive Collection (2006)
• The Very Best of Toto & Foreigner (2007)
• No End in Sight: The Very Best of Foreigner (#132 US) (2008)
• Can't Slow Down (#29 US) (2009)
• The Complete Atlantic Studio Albums 1977-1991 (2014)

• Ian Lloyd (1976)
• 3WC (Third Wave Civilization) (1980)

• Genesis Revisited (1997)
• The Tokyo Tapes (1998)
• Darktown (1999)
• To Watch The Storms (2003)

• Hazy Monet Live In New York City May 27, 1997 (1999)
• Welcome to Heaven / Sinister (2000)

• Drivers Eyes (1999)
• Take Five Steps (2019)

• Official Bootleg V.1 (2002)
• Live in Japan (2003)
• Live in Japan (2003) (DVD)
• Live in Italy (2003)
• Pictures of a City – Live in New York (2006)

• Bad Old World (released on 19 May 2017)

• Christine Harwood Nice To Meet Miss Christine (1970)
• Centipede Septober Energy (1971)
• Linda Lewis Say No More (1971)
• T. Rex Electric Warrior (#32 US, #1 UK)
• Silverhead Sixteen and Savaged (1973)
• Herbie Mann London Underground (1973)
• Darryl Way's Wolf Canis Lupus (1973)
• Keith Christmas Brighter Day (1974)
• Fruupp Modern Masquerades (1975)
• Fireballet Night on Bald Mountain (1975)
• Ian Lloyd Ian Lloyd (1976)
• Steve Taylor On the Fritz (1985)
• Jesse Taylor Is Dead Jesse Taylor Is Dead (1996)
• Various Artists To Cry You a Song: A Collection of Tull Tales (1996) (Jethro Tull tribute album)
• Nari Matsuura Pianist (1997)
• The Wallace/Trainor Conspiracy Take A Train (1998)
• Park Stickney Action Harp Play Set (2000)
• Waking in the Blue Isn't It Pretty to Think So (2003)
• Ian Wallace Happiness With Minimal Side Effects (2003)
• Unu Pangaea (2004)
• Wetton/Downes Icon (2006)
• Jakko Jakszyk The Bruised Romantic Glee Club (2006)
• Judy Dyble Talking With Strangers (2009)
• Vince Martell Endless High (2009)
• Third International Beautiful Accident (2010)
• Asia Spirit of the Night: Live (2011)

• Success Stories with Bruce Jenner (1987) (Nationally Syndicated CBS Television Show)
• Wachenröder (1998) (Sega Saturn video game)