| Title | Vol No. | Issue No. | Publisher | Year Published | Price |
| U.S. (Uncle Sam) - Alex Ross - 2 issue mini series | 1 | 1 | DC/Vertigo | 1997 | $5.00 |
| U.S. (Uncle Sam) - Alex Ross - 2 issue mini series | 1 | 2 | DC/Vertigo | 1997 | $5.00 |
| U.S. Agent | 1 | 1 | Marvel | 1993 | $1.50 |
| U.S. War Machine | 1 | 3 | Marvel | 2001 | $2.00 |
| U.S. War Machine 2.0 | 1 | 1 | Max/Marvel | 2003 | $3.00 |
| U.S. War Machine 2.0 | 1 | 3 | Max/Marvel | 2003 | $3.00 |
| U.S. War Machine 2.0 | 1 | 5 | Max/Marvel | 2003 | $3.00 |
| U.S. War Machine 2.0 | 1 | 6 | Max/Marvel | 2003 | $3.00 |
| U.S. War Machine 2.0 | 1 | 10 | Max/Marvel | 2003 | $3.00 |
| U.S.A. gent | 1 | 4 | Marvel | 1993 | $1.50 |
| Ultimate Daredevil/Electra | 1 | 2 | Marvel | 2003 | $5.00 |
| Ultimate Daredevil/Electra | 1 | 3 | Marvel | 2003 | $3.00 |
| Ultimate Spider-Man | 1 | 37 | Marvel | 2000-Current | $4.00 |
| Ultimate Spider-Man | 1 | 38 | Marvel | 2000-Current | $4.00 |
| Ultimate Spider-Man | 1 | 40 | Marvel | 2000-Current | $4.00 |
| Ultra Klutz | 2 | 2 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 3 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 4 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 5 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 6 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 7 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 8 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 9 | Onward | 1986-91 | $2.50 |
| Ultra Klutz | 2 | 10 | Onward | 1986-92 | $2.50 |
| Ultra Klutz | 2 | 11 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 13 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 14 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 15 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 16 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 17 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 18 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 19 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 20 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 21 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 22 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 24 | Onward | 1986-93 | $2.50 |
| Ultra Klutz | 2 | 25 | Onward | 1986-93 | $2.50 |
| Ultra Monthly | 1 | 4 | Malibu | 1995 | $2.50 |
| Ultra Monthly | 1 | 6 | Malibu | 1995 | $2.50 |
| Ultraforce | 1 | 0 | Malibu | 1994-95 | $2.50 |
| Ultraforce | 1 | 1 | Malibu | 1994-95 | $2.50 |
| Ultraforce | 1 | 2 | Malibu | 1994-95 | $2.50 |
| Ultraforce | 1 | 3 | Malibu | 1994-95 | $2.50 |
| Ultraforce | 1 | 4 | Malibu | 1994-95 | $2.50 |
| Ultraforce | 1 | 5 | Malibu | 1994-95 | $2.50 |
| Ultraforce | 1 | 6 | Malibu | 1994-95 | $2.50 |
| Ultraforce | 1 | 7 | Malibu | 1994-95 | $2.50 |
| Ultraforce | 1 | 8 | Malibu | 1994-95 | $2.50 |
| Ultraforce | 1 | 0A | Malibu | 1994-95 | $2.50 |
| Ultraforce | 1 | 0B | Malibu | 1994-95 | $2.50 |
| Ultraforce/Avengers | 1 | 1 | Malibu | 1995 | $4.00 |
| Ultraforce: Infinity | 1 | 1 | Malibu | 1995 | $2.50 |
| Ultragirl | 1 | 1 | Marvel | 1996 | $1.50 |
| Ultragirl | 1 | 2 | Marvel | 1996 | $1.50 |
| Ultraman | 1 | 1 | Harvey | 1993 | $3.00 |
| Ultraman | 1 | 2 | Harvey | 1993 | $3.00 |
| Ultraman | 1 | 3 | Harvey | 1993 | $3.00 |
| Ultraman | 2 | -1 | Nemesis | 1994 | $3.00 |
| Ultraman | 2 | 1 | Nemesis | 1994 | $3.00 |
| Ultraman | 2 | 2 | Nemesis | 1994 | $3.00 |
| Ultraman Classics: Battle of the Ultra Brothers | 1 | 1 | Viz | 1994 | $3.00 |
| Ultraverse | 1 | Preview | Malibu | 1993 | $3.00 |
| Ultraverse: Origins | 1 | 1 | Malibu | 1994 | $2.50 |
| Ultraverse: Unlimited | 1 | 1 | Malibu | 1996 | $2.50 |
| Ultraverse: Year Two | 1 | 1 | Malibu | 1995 | $5.00 |
| Ultraverse: Year Zero - The Death of the Squad | 1 | 1 | Malibu | 1995 | $2.50 |
| Ultraverse: Year Zero - The Death of the Squad | 1 | 2 | Malibu | 1995 | $2.50 |
| Unbound | 1 | 1 | Image | 1998 | $3.00 |
| Uncanny Origins | 1 | 1 | Marvel | 1996-97 | $2.50 |
| Uncanny Origins | 1 | 2 | Marvel | 1996-97 | $2.50 |
| Uncanny Origins | 1 | 4 | Marvel | 1996-97 | $2.50 |
| Uncanny Origins | 1 | 5 | Marvel | 1996-97 | $2.50 |
| Uncanny Origins | 1 | 10 | Marvel | 1996-97 | $2.50 |
| Uncanny Origins | 1 | 11 | Marvel | 1996-97 | $2.50 |
| Uncanny Origins | 1 | 14 | Marvel | 1996-97 | $2.50 |
| Uncanny X-Men | 1 | -1 | Marvel | 1963-Current | $3.00 |
| Uncanny X-Men | 1 | 150 | Marvel | 1963-Current | $12.50 |
| Uncanny X-Men | 1 | 174 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 181 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 182 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 186 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 189 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 190 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 192 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 195 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 203 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 204 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 208 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 209 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 211 | Marvel | 1963-Current | $20.00 |
| Uncanny X-Men | 1 | 214 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 220 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 223 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 224 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 226 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 227 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 228 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 230 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 232 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 239 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 240 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 241 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 242 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 243 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 245 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 246 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 247 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 248 | Marvel | 1963-Current | $25.00 |
| Uncanny X-Men | 1 | 249 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 250 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 252 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 253 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 254 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 255 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 256 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 259 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 260 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 262 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 263 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 264 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 265 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 269 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 272 | Marvel | 1963-Current | $10.00 |
| Uncanny X-Men | 1 | 273 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 280 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 281 | Marvel | 1963-Current | $7.50 |
| Uncanny X-Men | 1 | 282 | Marvel | 1963-Current | $12.00 |
| Uncanny X-Men | 1 | 283 | Marvel | 1963-Current | $16.00 |
| Uncanny X-Men | 1 | 284 | Marvel | 1963-Current | $5.00 |
| Uncanny X-Men | 1 | 285 | Marvel | 1963-Current | $5.00 |
| Uncanny X-Men | 1 | 286 | Marvel | 1963-Current | $5.00 |
| Uncanny X-Men | 1 | 287 | Marvel | 1963-Current | $5.00 |
| Uncanny X-Men | 1 | 288 | Marvel | 1963-Current | $5.00 |
| Uncanny X-Men | 1 | 289 | Marvel | 1963-Current | $5.00 |
| Uncanny X-Men | 1 | 290 | Marvel | 1963-Current | $5.00 |
| Uncanny X-Men | 1 | 291 | Marvel | 1963-Current | $5.00 |
| Uncanny X-Men | 1 | 292 | Marvel | 1963-Current | $5.00 |
| Uncanny X-Men | 1 | 293 | Marvel | 1963-Current | $5.00 |
| Uncanny X-Men | 1 | 294 | Marvel | 1963-Current | $5.00 |
| Uncanny X-Men | 1 | 295 | Marvel | 1963-Current | $5.00 |
| Uncanny X-Men | 1 | 296 | Marvel | 1963-Current | $5.00 |
| Uncanny X-Men | 1 | 297 | Marvel | 1963-Current | $5.00 |
| Uncanny X-Men | 1 | 306 | Marvel | 1963-Current | $3.00 |
| Uncanny X-Men | 1 | 307 | Marvel | 1963-Current | $3.00 |
| Uncanny X-Men | 1 | 309 | Marvel | 1963-Current | $3.00 |
| Uncanny X-Men | 1 | 310 | Marvel | 1963-Current | $3.00 |
| Uncanny X-Men | 1 | 311 | Marvel | 1963-Current | $3.00 |
| Uncanny X-Men | 1 | 282B | Marvel | 1963-Current | $6.00 |
| Uncanny X-Men - Annual | 1 | 5 | Marvel | 1981 | $12.50 |
| Uncanny X-Men - Annual | 1 | 6 | Marvel | 1982 | $12.50 |
| Uncanny X-Men - Annual | 1 | 7 | Marvel | 1983 | $10.00 |
| Uncanny X-Men - Annual | 1 | 8 | Marvel | 1984 | $10.00 |
| Uncanny X-Men - Annual | 1 | 9 | Marvel | 1985 | $12.50 |
| Uncanny X-Men - Annual | 1 | 10 | Marvel | 1986 | $12.50 |
| Uncanny X-Men - Annual | 1 | 11 | Marvel | 1987 | $6.00 |
| Uncanny X-Men - Annual | 1 | 12 | Marvel | 1988 | $5.00 |
| Uncanny X-Men - Annual | 1 | 12 | Marvel | 1988 | $5.00 |
| Uncanny X-Men - Annual | 1 | 13 | Marvel | 1989 | $6.00 |
| Uncanny X-Men - Annual | 1 | 14 | Marvel | 1990 | $8.00 |
| Uncanny X-Men - Annual | 1 | 15 | Marvel | 1991 | $4.00 |
| Uncanny X-Men - Annual | 1 | 16 | Marvel | 1992 | $3.00 |
| Uncanny X-Men - Annual | 1 | 17 | Marvel | 1993 | $3.50 |
| Uncanny X-Men - Annual | 1 | 1996 | Marvel | 1996 | $4.00 |
| Underworld | 1 | 2 | DC | 1988 | $2.50 |
| Underworld | 1 | 3 | DC | 1988 | $2.50 |
| Underworld | 1 | 4 | DC | 1988 | $2.50 |
| Underworld Unleashed | 1 | 1 | DC | 1995 | $4.00 |
| Underworld Unleashed | 1 | 3 | DC | 1995 | $4.00 |
| Underworld Unleashed: Apokolips - Dark Uprising | 1 | 1 | DC | 1995 | $2.50 |
| Underworld Unleashed: Patterns of Fear | 1 | 1 | DC | 1995 | $3.00 |
| Unexpected | 1 | 135 | DC | 1968-82 | $30.00 |
| Unexpected | 1 | 138 | DC | 1968-82 | $18.00 |
| Unexpected | 1 | 142 | DC | 1968-82 | $18.00 |
| Unexpected | 1 | 154 | DC | 1968-82 | $18.00 |
| Unexpected | 1 | 170 | DC | 1968-82 | $12.00 |
| Unexpected | 1 | 171 | DC | 1968-82 | $12.00 |
| Unexpected | 1 | 174 | DC | 1968-82 | $12.00 |
| Unexpected | 1 | 177 | DC | 1968-82 | $12.00 |
| Unexpected | 1 | 183 | DC | 1968-82 | $12.00 |
| Unexpected | 1 | 186 | DC | 1968-82 | $12.00 |
| Unexpected | 1 | 188 | DC | 1968-82 | $12.00 |
| Unexpected | 1 | 192 | DC | 1968-82 | $15.00 |
| Unexpected | 1 | 194 | DC | 1968-82 | $15.00 |
| Unexpected | 1 | 196 | DC | 1968-82 | $10.00 |
| Unexpected | 1 | 197 | DC | 1968-82 | $10.00 |
| Unexpected | 1 | 198 | DC | 1968-82 | $10.00 |
| Unexpected | 1 | 199 | DC | 1968-82 | $10.00 |
| Unexpected | 1 | 200 | DC | 1968-82 | $10.00 |
| Unexpected | 1 | 201 | DC | 1968-82 | $10.00 |
| Unexpected | 1 | 203 | DC | 1968-82 | $10.00 |
| Unexpected | 1 | 205 | DC | 1968-82 | $10.00 |
| Unexpected | 1 | 206 | DC | 1968-82 | $10.00 |
| Unexpected | 1 | 208 | DC | 1968-82 | $10.00 |
| Unexpected | 1 | 209 | DC | 1968-82 | $10.00 |
| Unexpected | 1 | 211 | DC | 1968-82 | $10.00 |
| Unexpected | 1 | 214 | DC | 1968-82 | $10.00 |
| Unexpected | 1 | 215 | DC | 1968-82 | $10.00 |
| Unexpected | 1 | 217 | DC | 1968-82 | $10.00 |
| Unexpected | 1 | 220 | DC | 1968-82 | $10.00 |
| Unexpected | 1 | 221 | DC | 1968-82 | $10.00 |
| Unexpected | 1 | 222 | DC | 1968-82 | $10.00 |
| Unicorn Isle | 1 | 1 | Warp | 1986 | $3.50 |
| Unicorn Isle | 1 | 2 | Warp | 1986 | $3.50 |
| Unicorn Isle | 1 | 3 | Apple | 1986 | $1.50 |
| Unicorn Isle | 1 | 4 | Apple | 1986 | $1.50 |
| Unicorn Isle | 1 | 5 | Apple | 1986 | $1.50 |
| Union | 1 | 0 | Image | 1993-1994 | $2.50 |
| Union | 1 | 1 | Image | 1993-1994 | $2.50 |
| Union | 1 | 1A | Image | 1993-1994 | $3.00 |
| Union | 2 | 1 | Image | 1995 | $2.50 |
| Union | 2 | 5 | Image | 1995 | $2.50 |
| Union | 2 | 6 | Image | 1995 | $2.50 |
| Union | 2 | 7 | Image | 1995 | $2.50 |
| Union | 2 | 8 | Image | 1995 | $2.50 |
| Union | 2 | 9 | Image | 1995 | $2.50 |
| Union Jack | 1 | 1 | Marvel | 1998-89 | $2.00 |
| Union: Final Vengeance | 1 | 1 | Image | 1997 | $2.50 |
| Unity | 1 | 0 | Valiant | 1992 | $2.50 |
| Unity | 1 | 1 | Valiant | 1992 | $2.50 |
| Unity | 1 | 1A | Valiant | 1992 | $3.00 |
| Unity | 1 | 1B | Valiant | 1992 | $4.00 |
| Unity 2000 | 1 | 1 | Acclaim | 1999-2000 | $5.00 |
| Unity 2000 | 1 | 2 | Acclaim | 1999-2000 | $10.00 |
| Unity 2000 | 1 | Preview | Acclaim | 1999-2000 | $2.50 |
| Unity: The Lost Chapter - Annual | 1 | 1 | Valiant | 1994 | $4.00 |
| Universal Monsters: The Mummy | 1 | 1 | Dark Horse | 1993 | $5.00 |
| Universal Soldier | 1 | 1 | NOW | 1992 | $2.50 |
| Universe | 1 | 2 | Image | 2001-02 | $2.50 |
| Unknown Soldier | 1 | 5 | DC | 1988 | $3.00 |
| Untold Tales of Spider-Man | 1 | 3 | Marvel | 1995-97 | $2.50 |
| Untold Tales of Spider-Man | 1 | 4 | Marvel | 1995-97 | $2.50 |
| Untold Tales of Spider-Man | 1 | 5 | Marvel | 1995-97 | $2.50 |
| Untold Tales of Spider-Man | 1 | 6 | Marvel | 1995-97 | $2.50 |
| Untold Tales of Spider-Man | 1 | 12 | Marvel | 1995-97 | $2.50 |
| Untold Tales of Spider-Man | 1 | 15 | Marvel | 1995-97 | $2.50 |
| Untold Tales of Spider-Man | 1 | 16 | Marvel | 1995-97 | $2.50 |
| Untold Tales of Spider-Man | 1 | 1996 | Marvel | 1996 | $5.00 |
| Untouchables | 1 | 1 | Caliber | 1997 | $3.00 |
| Untouchables | 1 | 2 | Caliber | 1997 | $3.00 |
| Urth 4 | 1 | 1 | Continuity | 1989 | $3.00 |
| Urth 4 | 1 | 3 | Continuity | 1989 | $3.00 |
| Usagi Yojimbo | 1 | 1 | Fantagraphics | 1987-89 | $4.00 |
| Usagi Yojimbo | 1 | 2 | Fantagraphics | 1987-89 | $3.00 |
| Usagi Yojimbo | 1 | 6 | Fantagraphics | 1987-89 | $3.00 |
| Usagi Yojimbo | 1 | 10 | Fantagraphics | 1987-89 | $3.00 |