free price guide and tracking database| Title | Volume | Years | Issues |
|---|---|---|---|
| Ultiman: Giant Annual | One-Shot | 2001 | 1 |
| Ultra | 2004-2005 | 12 | |
| Ultra: Seven Days | 2011 | 1 | |
| Ultramega by James Harren | 2021 | 31 | |
| Umbra | 2006 | 3 | |
| Umbral | 2013-2015 | 15 | |
| Unbound | One-Shot | 1998 | 1 |
| Uncanny Skullkickers | One-Shot | 2013 | 3 |
| Underground | 2009-2010 | 6 | |
| Undertow | 2014 | 13 | |
| Underwinter | 2017 | 14 | |
| Underwinter: A Field of Feathers | 2017-2018 | 8 | |
| Underwinter: Queen of Spirits | 2018 | 1 | |
| Undiscovered Country | 2019-Present | 87 | |
| Undiscovered Country: Destiny Man | One-Shot | 2022 | 4 |
| Undying Love | Mini | 2011 | 6 |
| Unearth | 2019-2021 | 19 | |
| Unearthed Cemetery Blues | 2008 | 1 | |
| Unhuman: Elephantmen Art of Ladronn | 2008 | 1 | |
| Union | Vol. 1 | 1993-1994 | 7 |
| Union | Vol. 2 | 1995 | 10 |
| Union: Final Vengeance | One-Shot | 1997 | 1 |
| Universe | HC | 2021 | 1 |
| Unnatural | 2018-Present | 73 | |
| Unnatural: Blue Blood | 2022 | 15 | |
| Unpresidented: Cartoons of Chaos | 2020 | 1 | |
| Untouchables | 2006 | 1 | |
| Urban Monsters | 2008 | 3 | |
| User | 2017 | 1 |
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