| Year | Title | Country | Label | Cat. # | UPC | Packaging | Discs | Notes | eBay | Images |
|---|---|---|---|---|---|---|---|---|---|---|
Gary Hughes — EPs |
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| 1998 | In Your Eyes | Japan | Zero Records | XRCN 2014 | 4959407020141 | Jewel case | 1 CD (5 tracks) |  |
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Gary Hughes — Studio Albums |
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| 1989 | Big Bad Wolf | Norway | Polygram Records | 838 991-2 | 042283899124 | Jewel case | 1 CD (11 tracks) | |
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| 1990 | Strength of Heart | Norway | Polygram Records | 838 991-2 | 042283899124 | Jewel case | 1 CD (14 tracks) | |
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| 1992 | Gary Hughes | Japan | Zero Records | XRCN-1071 | 4959407000716 | Jewel case | 1 CD (11 tracks) | |
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| 1992 | Gary Hughes | United Kingdom | Now & Then | NTHEN 1 | --- | Jewel case | 1 CD (11 tracks) | |
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| 1998 | Precious Ones | Italy | Frontiers Records | FR CD 004 | 8024391000427 | Jewel case | 1 CD (12 tracks) | |
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| 2003 | Once and Future King - Part 1 | Italy | Frontiers Records | FR CD 161D | 8024391016114 | Digipak | 1 CD (10 tracks) | |
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| 2003 | Once and Future King - Part 2 | Italy | Frontiers Records | FR CD 162D | 8024391016213 | Digipak | 1 CD (12 tracks) | |
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| 2007 | Veritas | Italy | Frontiers Records | FR CD 354 | 8024391035429 | Jewel case | 1 CD (12 tracks) | Cardboard slipcase | |
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| 2021 | Waterside | Italy | Frontiers Records | FR CD 1099 | 8024391109922 | Jewel case | 1 CD (10 tracks) | |
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Gary Hughes — Compilations |
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| 2000 | The Reissues | Japan | Victor Entertainment | PHCR-14025/6 | 4988011363849 | Jewel case | 2 CDs (12 + 15 tracks) | |
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| 2021 | Decades | Italy | Frontiers Records | FR CD 1100 | 8024391110027 | Jewel case | 2 CDs (15 + 14 tracks) | |
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Ten — EPs |
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| 1996 | The Name of the Rose | Japan | Zero Records | XRCN-1291 | 4959407012917 | Digipak | 1 CD (5 tracks) | Includes laminated faux tour pass | |
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| 1997 | You're In My Heart | Japan | Zero Records | XRCN 2015 | 4959407020158 | Jewel case | 1 CD (5 tracks) | |
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| 2015 | The Dragon and Saint George | United Kingdom | Rocktopia Records | RTP004EP | 5055300387196 | Jewel case | 1 CD (6 tracks) | |
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Ten — Studio Albums |
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| 1996 | The Name of the Rose | Japan | Zero Records | XRCN-1284 | 4959070128496 | Jewel case | 1 CD (13 tracks) | |
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| 1999 | Spellbound | Italy | Frontiers Records | FR CD 014 | 8024391001424 | Jewel case | 1 CD (12 tracks) | |
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| 2000 | Babylon | Japan | Now & Then | PHCW-1082 | --- | Jewel case | 1 CD (10 tracks) | |
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| 2011 | Stormwarning | South Korea | Evolution Music | L100004237 | 8804775038891 | Jewel case | 1 CD (11 tracks) | |
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| 2012 | Heresy and Creed | Italy | Frontiers Records | FR CD 572 | 8024391057223 | Jewel case | 1 CD (13 tracks) | |
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| 2012 | Heresy and Creed | South Korea | Evolution Music | L100004583 | 8804775046599 | Jewel case | 1 CD (14 tracks) | |
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| 2014 | Albion | United Kingdom | Rocktopia Records | RTP001 | 5055300383167 | Jewel case | 1 CD (10 tracks) | |
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| 2017 | Gothica | Italy | Frontiers Records | FR CD 802 | 8024391080221 | Jewel case | 1 CD (10 tracks) | |
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| 2018 | Illuminati | Italy | Frontiers Records | FR CD 897 | 8024391089729 | Jewel case | 1 CD (10 tracks) | |
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| 2022 | Here Be Monsters | Italy | Frontiers Records | FR CD 1192 | 8024391119228 | Jewel case | 1 CD (10 tracks) | |
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| 2023 | Something Wicked This Way Comes | Italy | Frontiers Records | FR CD 1284 | 8024391128428 | Jewel case | 1 CD (10 tracks) | |
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Ten — Compilations |
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| 2016 | Battlefield: The Rocktopia Records Collection | United Kingdom | Rocktopia Records | RTP006 | 5055300389077 | Jewel case | 2 CDs (13 + 13 tracks) | |
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