| Album title | Year | Album Type | Owned |
| Amenity | 2002 | Demo | No |
| Lucidity | 2006 | Full-length | Yes (MP3) |
| Frozen | 2007 | Single | No |
| See Me in Shadow | 2007 | Single | No |
| The Gathering | 2008 | Single | No |
| April Rain Single | 2009 | Single | No |
| April Rain | 2009 | Full-length | Yes (MP3) |
| Smalltown Boy | 2009 | Single | No |
| Stay Forever | 2009 | Single | No |
| Nothing Left | 2010 | Single | No |
| Get the Devil Out of Me | 2012 | Single | No |
| We Are the Others | 2012 | Full-length | Yes (MP3) |
| We Are the Others Single | 2012 | Single | No |
| Interlude | 2013 | EP | No |
| Blood Tracks | 2013 | Split | No |
| The Human Contradiction | 2014 | Full-length | Yes (MP3) |
| Lunar Prelude | 2016 | EP | No |
| The Glory and the Scum | 2016 | Single | No |
| Fire with Fire | 2016 | Single | No |
| Moonbathers | 2016 | Full-length | Yes (MP3) |
| A Decade of Delain - Live at Paradiso | 2017 | Video | No |
| Hunter's Moon | 2019 | EP | No |
| Burning Bridges | 2019 | Single | No |
| One Second | 2019 | Single | No |
| Apocalypse & Chill | 2020 | Full-length | Yes (MP3) |
| The Quest and the Curse | 2022 | Single | No |
| Beneath | 2022 | Single | No |
| Moth to a Flame | 2023 | Single | No |
| Queen of Shadow | 2023 | Single | No |
| Dark Waters | 2023 | Full-length | No |
| Symphonic Dark Waters | 2023 | EP | No |
| Dance with the Devil | 2024 | EP | No |
| The Reaping (Acoustic version) | 2025 | Single | No |