| 2015 | Everything Beautiful In Time |
| 2020 | Things Unseen |
| 2012 | Speak |
| 1972 | Suite Per Una Donna Assolutamente Relativa |
| 1976 | Volando |
| 1971 | Terra In Bocca |
| 2015 | Stop Your Bitching |
| 2015 | Fuse |
| 2016 | Crack |
| 2017 | Trigger |
| 1971 | Opera Prima |
| 1972 | Alessandra |
| 1973 | Parsifal |
| 1975 | Un Po' Del Nostro Tempo Migliore |
| 1975 | Forse Ancora Poesia |
| 1982 | Palasport |
| 2003 | I Grandi Successi Originali |
| 1972 | I Teoremi |
| 2013 | ~ |
| 2016 | Lighthouse |
| 2019 | The Bell |
| 1983 | Walk Into Light |
| 1995 | Divinities : Twelve Dances With God |
| 2000 | The Secret Language Of Birds |
| 2012 | Thick As A Brick 2 |
| 2014 | Homo Erraticus |
| 1972 | Belladonna |
| 1977 | New Boots And Panties!! |
| 1997 | Dreamcatcher |
| 1976 | Child In Time |
| 1977 | Clear Air Turbulence |
| 1977 | Scarabus |
| 1977 | Live At The Budokan Vol.1 |
| 1978 | Live At The Budokan Vol.2 |
| 1975 | Ian Hunter |
| 1976 | All American Alien Boy |
| 1977 | Overnight Angels |
| 2007 | Shrunken Heads |
| 2012 | The Singles Collection 1975-83 |
| 1989 | YUI Orta |
| 2012 | When I'm President |
| 1973 | Traveling Underground |
| 1999 | Drivers Eyes |
| 1972 | Persepolis |
| 1974 | Sun Supreme |
| 1972 | The Marvel World Of Icarus |
| 1976 | Coses Nostres |
| 1977 | Sentiments |
| 1978 | Iceberg En Directe |
| 1979 | Arc-En-Ciel |
| 1973 | Icecross |
| 2007 | Framing Armageddon : Something Wicked Part1 |
| 2010 | The Crucible Of Man : Something Wicked Part2 |
| 2017 | Incorruptible |
| 1970 | Vehicle |
| 1968 | The Birthday Party |
| 1970 | If |
| 1970 | If 2 |
| 1971 | If 3 |
| 1972 | If 4 |
| 1969 | Igginbottom's Wrench |
| 1973 | Raw Power |
| 2005 | A Million In Prizes - The Anthology |
| 2016 | Post Pop Depression |
| 2019 | Free |
| 2013 | Sputnik |
| 2017 | The Sign Of Faith |
| 2020 | The Realms Of Fire And Death |
| 2023 | Dreams Of Lands Unseen |
| 2012 | Hallelujah |
| 2017 | Savage Sinusoid |
| 2020 | Spirituality And Distortion |
| 1980 | Vrt Svetlosti |
| 1972 | Iguana |
| 1971 | Ikarus |
| 2012 | Deus Lo Vult |
| 2018 | Seme |
| 1970 | Sirio 2222 |
| 1972 | Ys |
| 2016 | Cuma 2016 DC |
| 2023 | Lemures |
| 2016 | Arx Atlantis |
| 2008 | Il Viaggio Di Colombo |
| 2013 | Dedalo E Icaro |
| 2009 | Ritratto Di Ballerina |
| 1972 | Il Paese dei Balocchi |
| 1971 | La Bibbia |
| 1972 | Io Come Io |
| 1973 | Contaminazione |
| 2010 | Il Tempio Delle Clessidre |
| 2013 | AlieNatura |
| 1994 | Il Trono Dei Ricordi |
| 1974 | Il Volo |
| 1975 | Essere O Non Essere? Essere, Essere, Essere! |
| 2021 | Dark Horizons |
| 1978 | Illusion |
| 1979 | Out Of The Mist |
| 1993 | Iluvatar |
| 1995 | Children |
| 1999 | A Story Two Days Wide... |
| 2014 | From The Silence |
| 2009 | Silent Andromeda |
| 2020 | Omega |
| 2021 | The 7th Hand |
| 2011 | Moscow |
| 1987 | Impellitteri |
| 1988 | Stand In Line |
| 1992 | Grin & Bear It |
| 1994 | Answer To The Master |
| 1996 | Screaming Symphony |
| 1997 | Eye Of The Hurricane |
| 2015 | Venom |
| 2018 | The Nature Of The Beast |
| 2015 | Please Welcome |
| 1993 | Live In Japan |
| 1996 | Parallel |
| 1997 | Whoracle |
| 2016 | Battles |
| 2002 | Dryad |
| 2011 | One Trail To Heaven |
| 2012 | Blood |
| 2014 | Black Widow |
| 2017 | Ritual |
| 1969 | Volume I |
| 1966 | The Incredible String Band |
| 1967 | The 5000 Spirits Or The Layers Of The Onion |
| 1968 | The Hangman's Beautiful Daughter |
| 1968 | Wee Tam |
| 1968 | The Big Huge |
| 1970 | U |
| 1971 | Liquid Acrobat As Regards The Air |
| 1972 | Earthspan |
| 1999 | Index |
| 1971 | Indian Summer |
| 2022 | Hysteria |
| 1980 | Hunting The Fox |
| 2008 | The Year Of The Boar |
| 2021 | We Will Ride |
| 2013 | In Hoc Signo |
| 2016 | Warm Spaced Blue |
| 2012 | Rainbro |
| 2017 | Dromology |
| 2011 | Have A Seat |
| 2015 | Ascension |
| 2016 | Deep Ghosts |
| 2022 | Grey Origin |
| 2012 | The Village |
| 2017 | Rise |
| 1999 | Inquire Within |
| 1977 | Intergalactic Touring Band |
| 1968 | Safe At Home |
| 2015 | 夏の記憶 - Memories In The Wind |
| 2008 | Fantasy |
| 2011 | Elements |
| 2014 | Anima |
| 2019 | Shadows |
| 1984 | The Swing |
| 1987 | Kick |
| 2020 | Aura |
| 2005 | Fused |
| 1995 | Journey Into The Morn |
| 2000 | Open Sky |
| 2011 | Another Realm |
| 1984 | Tales From The Lush Attic |
| 1985 | The Wake |
| 1987 | Nomzamo |
| 1989 | Are You Sitting Comfortably? |
| 1991 | J'ai Pollette D'arnu |
| 1993 | Ever |
| 1997 | Subterranea |
| 2000 | The Seventh House |
| 2004 | Dark Matter |
| 2014 | The Road Of Bones |
| 2017 | Tales From A Dark Christmas |
| 2019 | Resistance |
| 1971 | Irish Coffee |
| 1985 | Hellish Crossfire |
| 1986 | Winds Of War |
| 1968 | Heavy |
| 1968 | In-A-Gadda-Da-Vida |
| 1969 | Ball |
| 1970 | Metamorphosis |
| 2011 | Fillmore East 1968 |
| 1980 | Iron Maiden |
| 1981 | Killers |
| 1981 | Maiden Japan |
| 1982 | The Number Of The Beast |
| 1983 | Piece Of Mind |
| 1984 | Powerslave |
| 1985 | Live After Death |
| 1986 | Somewhere In Time |
| 1988 | Seventh Son Of A Seventh Son |
| 1990 | No Prayer For The Dying |
| 1992 | Fear Of The Dark |
| 1993 | A Real Live One |
| 1993 | A Real Dead One |
| 1993 | Live At Donington |
| 1995 | X Factor |
| 1998 | Virtual XI |
| 2000 | Brave New World |
| 2002 | Rock In Rio |
| 2002 | Best Of The B-Sides |
| 2002 | Beast Over Hammersmith |
| 2002 | BBC Archives |
| 2003 | Dance Of Death |
| 2005 | Death On The Road |
| 2006 | A Matter Of Life And Death |
| 2010 | The Final Fronties |
| 2015 | The Book Of Souls |
| 2017 | The Book Of Souls: Live Chapter |
| 2021 | Senjutsu |
| 1998 | Maiden Voyage |
| 2015 | Megatropolis 2.0 |
| 2016 | Titancraft |
| 2017 | Reforged : Riding On Fire |
| 1973 | Ironbridge |
| 1979 | Ironhorse |
| 1981 | Sagan Om Ringen |
| 1983 | Sagan Om Den Irlandska Algen |
| 1985 | Sea Reflections |
| 1987 | Eight Moments Of Eternity |
| 1989 | Cheval - Volonte De Rocher |
| 1992 | The Voyage - A Trp To Elsewhere |
| 1994 | Lost Eggs |
| 2019 | In Amazonia |
| 2021 | In Disequilibrium |
| 1977 | Pictures |
| 2017 | Power Of Peace |
| 1978 | Acrostichon |
| 1974 | Isotope |
| 1974 | Illusion |
| 1976 | Deep End |
| 2009 | Departure |
| 2017 | We're All In This Together |
| 1986 | The Big Lad In The Windmill |
| 1988 | Once Around The World |
| 1989 | Eat Me In St. Louis |
| 1991 | Thank You And Goodnight |
| 2008 | The Tall Ships |
| 2012 | Map Of The Past |
| 1978 | Itoiz |
| 1980 | Ezekiel |
| 1982 | Alkolea |
| 1985 | Espaloian |
| 1968 | It's A Beautiful Day |
| 1969 | Marrying Maiden |
| 1979 | Itziar |
| 1980 | Sad Cypress |
| 2019 | Stronger |
| 1977 | Izvir |
| 1998 | Sliver Of A Sun |
| 2002 | I Move |
| 2005 | My River Flows |
| 2009 | The Darkened Room |
| 2012 | Crush Of Night |
| 2015 | Everlasting Instant |
| 2019 | Don't Panic |
| 2020 | Half Life |