| Artist | Title | Release Year | Length | Genre | Label | Format | Tracks |
|---|---|---|---|---|---|---|---|
| I Are Droid | I Are Debut | 2008 | 61:02 | Rock | Razzia | CD | 10 |
| I Drive | I Drive | 1972 | 80:32 | Rock | Second Battle | CD | 20 |
| I Mother Earth | Dig | 1993 | 67:44 | Rock | Capitol Records | CD | 12 |
| Ibliss | Supernova | 1972 | 43:22 | Rock | Garden Of Delights | CD | 4 |
| Icarus | The Marvel World Of Icarus | 1972 | 56:09 | Rock | Wooden Hills | CD | 18 |
| Icecross | Icecross | 1973 | 36:09 | Rock | CD | 8 | |
| If | If | 1970 | 46:07 | Rock | Repertoire Records | CD | 9 |
| If | Double Diamond | 1973 | 41:37 | Rock | Relics | CD | 9 |
| Iguana | Blues | 2008 | 21:46 | Rock | Home Sweet Home | CD | 5 |
| Ikarus | Ikarus | 1971 | 41:01 | Rock | Second Battle | CD | 4 |
| Ikebe Shakedown | Ikebe Shakedown | 2011 | 52:04 | Funk | Ubiquity Recordings | CD | 14 |
| Il Balletto Di Bronzo | Sirio 2222 | 1970 | 40:07 | Rock | Sony BMG Music Entertainment (Italy) | CD | 9 |
| Il Balletto Di Bronzo | Ys | 1972 | 41:33 | Rock | Polydor | CD | 6 |
| Il Rovescio Della Medaglia | La Bibbia | 1971 | 32:53 | Rock | Sony BMG Music Entertainment (Italy) | CD | 6 |
| The Illuminati | On Borrowed Time | 2004 | 34:52 | Rock | Universal Music | CD | 13 |
| The Illuminati | The Illuminati | 2005 | 21:48 | Rock | Liquor And Poker Music | CD | 7 |
| The Illusion | The Illusion | 1969 | 36:44 | Rock | TRC Records | CD | 9 |
| The Illusion | If It's So | 1970 | 35:09 | Rock | TRC Records | CD | 8 |
| Ilmo Smokehouse | Ilmo Smokehouse...Plus | 2006 | 67:44 | Rock | Akarma Records | CD | 15 |
| Imaad Wasif With Two Part Beast | Strange Hexes | 2008 | 48:01 | Rock | CD | 10 | |
| Impala Syndrome | Impala Syndrome | 1969 | 33:16 | Rock | Gear Fab Records | CD | 10 |
| Imperial Battlesnake | Attack! | 2006 | 44:51 | Metal | Threat Records | CD | 9 |
| Imperial State Electric | Imperial State Electric | 2010 | 39:07 | Rock | Psychout Records | CD | 12 |
| Imperial State Electric | In Concert | 2011 | 19:01 | Rock | Psychout Records | CD | 6 |
| Imperial State Electric | Pop War | 2012 | 31:25 | Rock | Psychout Records | CD | 10 |
| In The Labyrinth | The Garden Of Mysteries | 2011 | 73:54 | Rock | Transubstans Records | CD | 22 |
| Incoming Cerebral Overdrive | Cerebral Heart | 2008 | 52:20 | Metal | Myphonic Records | CD | 10 |
| Incoming Cerebral Overdrive | Controverso | 2009 | 33:23 | Rock | Supernatural Cat | CD | 8 |
| Incredible Hog | Volume 1 | 1973 | 37:21 | Rock | Won-Sin Music Company | CD | 10 |
| Incredible Hog | Volume 1 + 4 | 2011 | 51:59 | Rock | Rise Above Relics | CD | 14 |
| Index | The Black Album & The Red Album/Yesterday & Today | 2011 | 119:28 | Rock | Lion Productions | CD | 35 |
| Indian Summer | Indian Summer | 1971 | 49:43 | Rock | Akarma Records | CD | 8 |
| Infectious Grooves | The Plague That Makes Your Booty Move... It's The Infectious Grooves | 1991 | 44:48 | Metal | Epic | CD | 16 |
| Infectious Grooves | Sarsippius' Ark | 1993 | 57:03 | Rock | Epic | CD | 20 |
| Influence | Influence | 1968 | 37:59 | Rock | Picar | CD | 11 |
| Insider | Insider | 1996 | 59:42 | Rock | Freak Out Records | CD | 10 |
| Insider | Land Of Crystals | 1998 | 52:11 | Rock | Dolmen | CD | 8 |
| Insider | Jammin' For Smiling God | 2001 | 31:48 | Rock | Beard Of Stars Records | CD | 4 |
| Insider | Simple Water Drops | 2005 | 52:58 | Rock | Beard Of Stars Records | CD | 8 |
| Instant Flight | Colours & Lights | 2005 | 52:00 | Rock | Beard Of Stars Records | CD | 12 |
| Instant Flight | Endless Journey | 2008 | 52:09 | Rock | Headspin Records | CD | 12 |
| Instant Orange | Instant Orange | 2007 | 68:34 | Rock | Shadoks Music | CD | 29 |
| International Harvester | Sov Gott Rose-Marie | 1969 | 73:13 | Rock | Silence Recordings | CD | 14 |
| Iota | Iota | 1969 | 30:09 | Rock | Shadoks Music | CD | 10 |
| Iota | Tales | 2008 | 50:05 | Rock | Small Stone Recordings | CD | 5 |
| Irish Coffee | Irish Coffee | 1972 | 61:19 | Rock | CD | 15 | |
| Irish Coffee | Live Rockpalast - Harmonie Bonn - 21.12.2005 | 2008 | 63:47 | Rock | Second Battle | CD | 14 |
| Iron Age | The Sleeping Eye | 2009 | 43:58 | Metal | Tee Pee Records | CD | 8 |
| Iron Claw | Iron Claw | 1974 | 74:37 | Rock | Rockadrome | CD | 16 |
| Iron Dogs | Cold Bitch | 2012 | 00:00 | Metal | Iron Bonehead | LP | 9 |
| Iron Maiden | The Number Of The Beast | 1982 | 40:13 | Rock | EMI | CD | 8 |
| Iron Maiden | Piece Of Mind | 1983 | 45:58 | Metal | EMI | CD | 9 |
| Iron Maiden | Powerslave | 1984 | 50:53 | Metal | EMI | CD | 8 |
| Iron Maiden | No Prayer For The Dying | 1990 | 44:02 | Metal | EMI | CD | 10 |
| Iron Maiden | Killers (Remaster) | 1998 | 41:23 | Metal | EMI | CD | 11 |
| Iron Man | Black Night | 1992 | 48:44 | Metal | Shadow Kingdom Records | CD | 10 |
| Iron Man | The Passage | 1994 | 43:52 | Metal | Leaf Hound Records | CD | 11 |
| Iron Man | Generation Void | 1999 | 45:07 | Metal | Brainticket Records | CD | 11 |
| Iron Man | I Have Returned | 2009 | 45:26 | Metal | Shadow Kingdom Records | CD | 10 |
| Iron Monkey | Our Problem | 1998 | 64:36 | Rock | Earache Records | CD | 13 |
| Ironweed | Indian Ladder | 2008 | 55:49 | Rock | Small Stone Recordings | CD | 11 |
| Ironweed | Your World Of Tomorrow | 2011 | 40:22 | Rock | Small Stone Recordings | CD | 9 |
| Isolation Years | Inland Traveller | 2001 | 63:30 | Rock | Stickman Records | CD | 17 |
| Isotope | Illusion | 1974 | 41:49 | Rock | Esoteric Recordings | CD | 10 |
| Isotope | Isotope | 1974 | 40:37 | Rock | Esoteric Recordings | CD | 9 |
| Isotope | Deep End | 1975 | 65:07 | Rock | Esoteric Recordings | CD | 12 |
| Isotope And Gary Boyle | Live At The BBC | 2004 | 48:00 | Rock | Hux Records | CD | 9 |
| It's Casual | Stop Listening To Bad Music | 2005 | 18:07 | Rock | The Friendly Hills Recording Company | CD | 10 |
| It's Casual | Buicregl | 2007 | 25:00 | Rock | The Friendly Hills Recording Company | CD | 12 |
| Ivy Garden Of The Desert | Docile | 2011 | 37:58 | Rock | Nasoni Records | CD | 4 |
| Ivy Garden Of The Desert | Blood Is Love | 2012 | 33:22 | Rock | Nasoni Records | CD | 6 |
| Izzy Stradlin And The Ju Ju Hounds | Izzy Stradlin And The Ju Ju Hounds | 1992 | 43:30 | Rock | Geffen | CD | 10 |