| Title | Vol No. | Issue No. | Publisher | Year Published | Price | |
| 100 Bullets | 1 | 7 | DC | 1999-Current | $3.00 | |
| 100 Bullets | 1 | 8 | DC | 1999-Current | $3.00 | |
| 100 Bullets | 1 | 9 | DC | 1999-Current | $3.00 | |
| 100 Bullets | 1 | 10 | DC | 1999-Current | $3.00 | |
| 100 Bullets | 1 | 14 | DC | 1999-Current | $3.00 | |
| Obergeist: Ragnorak Highway | 1 | 1 | Image | 2001 | $5.00 | |
| Obergeist: Ragnorak Highway | 1 | Preview | Image | 2001 | $5.00 | |
| Objective Five | 1 | 1 | Image | 2000-01 | $3.00 | |
| Oblivion | 1 | 1 | Comico | 1995 | $2.50 | |
| Oblivion | 1 | 2 | Comico | 1995 | $2.50 | |
| Oblivion | 1 | 3 | Comico | 1995 | $2.50 | |
| October Yen | 1 | 1 | Antartic | 1995 | $3.50 | |
| Of Myths and Men | 1 | 1 | Blackthorne | 1987 | $2.00 | |
| Of Myths and Men | 1 | 2 | Blackthorne | 1987 | $2.00 | |
| Offcastes | 1 | 1 | Epic | 1993 | $3.00 | |
| Offcastes | 1 | 2 | Epic | 1993 | $3.00 | |
| Offcastes | 1 | 3 | Epic | 1993 | $3.00 | |
| Offerings | 1 | 2 | CFD | 1993 | $4.00 | |
| Official Handbook of the Marvel Universe | 1 | 13 | Marvel | 1984 | $4.00 | |
| Official Handbook of the Marvel Universe | 1 | 14 | Marvel | 1984 | $4.00 | |
| Official Handbook of the Marvel Universe | 1 | 15 | Marvel | 1984 | $4.00 | |
| Official Handbook of the Marvel Universe | 2 | 1 | Marvel | 1985-88 | $4.00 | |
| Official Handbook of the Marvel Universe | 2 | 2 | Marvel | 1985-88 | $3.00 | |
| Official Handbook of the Marvel Universe | 2 | 3 | Marvel | 1985-88 | $3.00 | |
| Official Handbook of the Marvel Universe | 2 | 6 | Marvel | 1985-88 | $3.00 | |
| Official Handbook of the Marvel Universe | 2 | 8 | Marvel | 1985-88 | $3.00 | |
| Official Handbook of the Marvel Universe | 2 | 9 | Marvel | 1985-88 | $3.00 | |
| Official Handbook of the Marvel Universe | 2 | 10 | Marvel | 1985-88 | $3.00 | |
| Official Handbook of the Marvel Universe | 2 | 11 | Marvel | 1985-88 | $3.00 | |
| Official Handbook of the Marvel Universe | 2 | 12 | Marvel | 1985-88 | $3.00 | |
| Official Handbook of the Marvel Universe | 2 | 13 | Marvel | 1985-88 | $3.00 | |
| Official Handbook of the Marvel Universe | 2 | 15 | Marvel | 1985-88 | $3.00 | |
| Official Handbook of the Marvel Universe | 2 | 16 | Marvel | 1985-88 | $3.00 | |
| Official Hawkman Index | 1 | 2 | Eclipse | 1986 | $4.00 | |
| Official Index Modesty Blaise | 1 | 6 | Pioneer | 1988-89 | $5.00 | |
| Official Index Modesty Blaise | 1 | 7 | Pioneer | 1988-89 | $5.00 | |
| Official Index to the Avengers | 1 | 1 | Marvel | 1987-88 | $5.00 | |
| Official Index to the Avengers | 1 | 4 | Marvel | 1987-88 | $5.00 | |
| Official Index to X-Men | 1 | 4 | Marvel | 1987-88 | $5.00 | |
| Official Index to X-Men | 1 | 6 | Marvel | 1987-88 | $5.00 | |
| Official Index to X-Men | 2 | 1 | Marvel | 1994 | $3.00 | |
| Official Marvel Index to Amazing Spider-Man | 1 | 1 | Marvel | 1985 | $4.00 | |
| Official Marvel Index to Amazing Spider-Man | 1 | 2 | Marvel | 1985 | $3.00 | |
| Official Marvel Index to Amazing Spider-Man | 1 | 3 | Marvel | 1985 | $3.00 | |
| Official Marvel Index to Amazing Spider-Man | 1 | 4 | Marvel | 1985 | $3.00 | |
| Official Marvel Index to Amazing Spider-Man | 1 | 5 | Marvel | 1985 | $3.00 | |
| Official Marvel Index to Amazing Spider-Man | 1 | 6 | Marvel | 1985 | $3.00 | |
| Official Marvel Index to Amazing Spider-Man | 1 | 7 | Marvel | 1985 | $3.00 | |
| Official Marvel Index to Amazing Spider-Man | 1 | 9 | Marvel | 1985 | $3.00 | |
| Official Marvel Index to Marvel Team-Up | 1 | 1 | Marvel | 1986 | $4.00 | |
| Official Marvel Index to Marvel Team-Up | 1 | 2 | Marvel | 1986 | $4.00 | |
| Official Marvel Index to Marvel Team-Up | 1 | 3 | Marvel | 1986 | $4.00 | |
| Official Marvel Index to the Fantastic Four | 1 | 1 | Marvel | 1985-Current | $3.00 | |
| Official Marvel Index to the Fantastic Four | 1 | 2 | Marvel | 1985-Current | $3.00 | |
| Official Marvel Index to the Fantastic Four | 1 | 3 | Marvel | 1985-Current | $3.00 | |
| Official Marvel Index to the Fantastic Four | 1 | 6 | Marvel | 1985-Current | $3.00 | |
| Official Marvel Index to the Fantastic Four | 1 | 8 | Marvel | 1985-Current | $3.00 | |
| Official Marvel Index to the Fantastic Four | 1 | 10 | Marvel | 1985-Current | $3.00 | |
| Official Marvel Index to the Fantastic Four | 1 | 11 | Marvel | 1985-Current | $3.00 | |
| Official Marvel Index to the Fantastic Four | 1 | 12 | Marvel | 1985-Current | $3.00 | |
| Official Teen Titans Index | 1 | 1 | Eclipse | 1985 | $4.00 | |
| Official Teen Titans Index | 1 | 2 | Eclipse | 1985 | $4.00 | |
| Official Teen Titans Index | 1 | 3 | Eclipse | 1985 | $4.00 | |
| Ogenki Clinic | 3 | 1 | Ironcat/Sexy Fruit | 1998 | $4.00 | |
| Ogenki Clinic | 3 | 2 | Ironcat/Sexy Fruit | 1998 | $4.00 | |
| Ogenki Clinic | 3 | 4 | Ironcat/Sexy Fruit | 1998 | $4.00 | |
| Ogenki Clinic | 4 | 5 | Ironcat/Sexy Fruit | 1999 | $3.00 | |
| Oink: Blood and Circus | 1 | 1 | Kitchen Sink | 1998 | $5.00 | |
| Oink: Blood and Circus | 1 | 3 | Kitchen Sink | 1998 | $5.00 | |
| Oink: Heaven's Butcher | 1 | 1 | Kitchen Sink | 1995 | $3.50 | |
| Oktane | 1 | 1 | Dark Horse | 1995 | $2.50 | |
| Oktane | 1 | 2 | Dark Horse | 1995 | $2.50 | |
| Oktane | 1 | 3 | Dark Horse | 1995 | $2.50 | |
| Oktoberfest Comics | 1 | 1 | Now and Then | 1976 | $24.00 | |
| Olympians | 1 | 1 | Epic | 1991 | $4.00 | |
| Olympians | 1 | 2 | Epic | 1991 | $4.00 | |
| Omac | 1 | 1 | DC | 1974-75 | $40.00 | |
| Omac | 1 | 2 | DC | 1974-75 | $20.00 | |
| Omac | 1 | 7 | DC | 1974-75 | $20.00 | |
| Omac | 1 | 8 | DC | 1974-75 | $20.00 | |
| OMAC - One Man Army Corps | 1 | 1 | DC | 1991 | $4.00 | |
| OMAC - One Man Army Corps | 1 | 2 | DC | 1991 | $4.00 | |
| OMAC - One Man Army Corps | 1 | 3 | DC | 1991 | $4.00 | |
| Omega Force | 1 | 1 | Entity | 1995 | $2.50 | |
| Omega Men | 1 | 1 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 2 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 3 | DC | 1982-86 | $8.00 | 1st Lobo |
| Omega Men | 1 | 4 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 5 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 5 | DC | 1982-86 | $5.00 | |
| Omega Men | 1 | 6 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 7 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 8 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 9 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 10 | DC | 1982-86 | $5.00 | |
| Omega Men | 1 | 11 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 12 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 13 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 14 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 15 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 16 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 17 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 18 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 19 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 20 | DC | 1982-86 | $3.00 | |
| Omega Men | 1 | 21 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 22 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 23 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 24 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 25 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 26 | DC | 1982-86 | $3.00 | |
| Omega Men | 1 | 27 | DC | 1982-86 | $3.00 | |
| Omega Men | 1 | 28 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 29 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 30 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 31 | DC | 1982-86 | $3.00 | |
| Omega Men | 1 | 32 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 33 | DC | 1982-86 | $2.50 | |
| Omega Men | 1 | 34 | DC | 1982-86 | $3.00 | |
| Omega Men | 1 | 35 | DC | 1982-86 | $3.00 | |
| Omega Men | 1 | 36 | DC | 1982-86 | $3.00 | |
| Omega Men | 1 | 37 | DC | 1982-86 | $3.00 | |
| Omega Men | 1 | 38 | DC | 1982-86 | $3.00 | |
| Omega Men - Annual | 1 | 1 | DC | 1982-86 | $3.00 | |
| Omega Men - Annual | 1 | 2 | DC | 1982-86 | $3.00 | |
| Omega the Unknown | 1 | 1 | Marvel | 1976-77 | $10.00 | 10 issue series |
| Omega the Unknown | 1 | 2 | Marvel | 1976-77 | $6.00 | |
| Omega the Unknown | 1 | 3 | Marvel | 1976-77 | $6.00 | |
| Omega the Unknown | 1 | 4 | Marvel | 1976-77 | $6.00 | |
| Omega the Unknown | 1 | 5 | Marvel | 1976-77 | $6.00 | |
| Omega the Unknown | 1 | 6 | Marvel | 1976-77 | $6.00 | |
| Omega the Unknown | 1 | 7 | Marvel | 1976-77 | $6.00 | |
| Omega the Unknown | 1 | 8 | Marvel | 1976-77 | $6.00 | |
| Omega the Unknown | 1 | 9 | Marvel | 1976-77 | $6.00 | |
| Omega the Unknown | 1 | 10 | Marvel | 1976-77 | $6.00 | |
| Omen | 1 | 2 | Northstar | 1989 | $6.00 | |
| Omen | 1 | 3 | Northstar | 1989 | $6.00 | |
| Omen (The) | 1 | 1 | Chaos | 1998 | $3.00 | |
| Omen (The) | 1 | 2 | Chaos | 1998 | $3.00 | |
| Omen (The) | 1 | 3 | Chaos | 1998 | $3.00 | |
| Omen (The): Save The Chosen Preview | 1 | 1 | Chaos | 1997 | $2.50 | |
| Omicron | 1 | 2 | Pyramid | 1987 | $3.00 | |
| Omni Man | 1 | 1 | Lighthouse | 1989 | $4.00 | |
| One (The) | 1 | 1 | Epic/Marvel | 1985-86 | $2.00 | |
| One (The) | 1 | 2 | Epic/Marvel | 1985-86 | $2.00 | |
| One (The) | 1 | 3 | Epic/Marvel | 1985-86 | $2.00 | |
| One (The) | 1 | 4 | Epic/Marvel | 1985-86 | $2.00 | |
| One (The) | 1 | 5 | Epic/Marvel | 1985-86 | $2.00 | |
| One Mile Up | 1 | 1 | Eclipse | $3.00 | ||
| One Pound Gospel | 1 | 5 | Viz | $3.00 | ||
| One Weapon | 1 | 2 | Newcomers | $5.00 | ||
| One-armed Swordsman | 1 | 1 | Victory | 1987 | $3.00 | |
| One-armed Swordsman | 1 | 3 | Victory | 1987 | $3.00 | |
| Oni Double Feature | 1 | 1 | Oni Press | 1998-99 | $10.00 | |
| Oni Double Feature | 1 | 2 | Oni Press | 1998-99 | $3.00 | |
| Oni Double Feature | 1 | 5 | Oni Press | 1998-99 | $3.00 | |
| Oni Double Feature | 1 | 6 | Oni Press | 1998-99 | $3.00 | |
| Oni Double Feature | 1 | 7 | Oni Press | 1998-99 | $3.00 | |
| Oni Double Feature | 1 | 8 | Oni Press | 1998-99 | $3.00 | |
| Oni Double Feature | 1 | 9 | Oni Press | 1998-99 | $3.00 | |
| Onslaught Epilogue (X-Men) | 1 | 1 | Marvel | 1997 | $3.00 | |
| Onyx Overload | 1 | 1 | Epic | 1992-93 | $3.00 | |
| Onyx Overload | 1 | 2 | Epic | 1992-93 | $3.00 | |
| Open Season | 1 | 3 | Renegade | 1986 | $3.00 | |
| Open Space | 1 | 0 | Marvel | 1989-90 | $3.00 | |
| Open Space | 1 | 1 | Marvel | 1989-90 | $5.00 | Prestige format |
| Open Space | 1 | 2 | Marvel | 1989-90 | $5.00 | Prestige format |
| Open Space | 1 | 3 | Marvel | 1989-90 | $5.00 | Prestige format |
| Operation Knight Strike | 1 | 1 | Image | 1995 | $2.50 | |
| Operation Knight Strike | 1 | 2 | Image | 1995 | $2.50 | |
| Operation Knight Strike | 1 | 3 | Image | 1995 | $2.50 | |
| Operator 99 | 1 | 1 | Comics Conspiracy | 2004 | $4.00 | |
| Oracle | 1 | 2 | Oracle | $4.00 | ||
| Oriental Heroes | 1 | 1 | Jademan | 1988-93 | $2.50 | |
| Oriental Heroes | 1 | 5 | Jademan | 1988-93 | $2.50 | |
| Oriental Heroes | 1 | 6 | Jademan | 1988-93 | $2.50 | |
| Oriental Heroes | 1 | 7 | Jademan | 1988-93 | $2.50 | |
| Oriental Heroes | 1 | 19 | Jademan | 1988-93 | $2.50 | |
| Oriental Heroes | 1 | 37 | Jademan | 1988-93 | $2.50 | |
| Oriental Heroes | 1 | 48 | Jademan | 1988-93 | $2.50 | |
| Origin of the Defiant Universe | 1 | 1 | Defiant | 1994 | $2.50 | |
| Original Astroboy | 1 | 1 | Now | 1987-89 | $3.00 | |
| Original Astroboy | 1 | 2 | Now | 1987-89 | $2.00 | |
| Original Astroboy | 1 | 3 | Now | 1987-89 | $2.00 | |
| Original Astroboy | 1 | 4 | Now | 1987-89 | $2.00 | |
| Original Astroboy | 1 | 5 | Now | 1987-89 | $2.00 | |
| Original Astroboy | 1 | 6 | Now | 1987-89 | $2.00 | |
| Original Astroboy | 1 | 7 | Now | 1987-89 | $2.00 | |
| Original Astroboy | 1 | 8 | Now | 1987-89 | $2.00 | |
| Original Astroboy | 1 | 9 | Now | 1987-89 | $2.00 | |
| Original Astroboy | 1 | 10 | Now | 1987-89 | $2.00 | |
| Original Astroboy | 1 | 11 | Now | 1987-89 | $2.00 | |
| Original Astroboy | 1 | 13 | Now | 1987-89 | $2.00 | |
| Original Astroboy | 1 | 14 | Now | 1987-89 | $2.00 | |
| Original Astroboy | 1 | 16 | Now | 1987-89 | $2.00 | |
| Original Astroboy | 1 | 17 | Now | 1987-89 | $2.00 | |
| Original Dick Tracy | 1 | 2 | Gladstone | 1990 | $4.00 | |
| Original Dick Tracy | 1 | 4 | Gladstone | 1990 | $3.00 | |
| Original Dick Tracy | 1 | 5 | Gladstone | 1990 | $3.00 | |
| Original Dr Solar | 1 | 1 | Valiant | 1995 | $5.00 | |
| Original E-Man and Michael Mauser | 1 | 1 | First | 1985-86 | $2.00 | |
| Original E-Man and Michael Mauser | 1 | 2 | First | 1985-86 | $2.00 | |
| Original E-Man and Michael Mauser | 1 | 3 | First | 1985-86 | $2.00 | |
| Original E-Man and Michael Mauser | 1 | 4 | First | 1985-86 | $2.00 | |
| Original E-Man and Michael Mauser | 1 | 5 | First | 1985-86 | $2.00 | |
| Original E-Man and Michael Mauser | 1 | 6 | First | 1985-86 | $2.00 | |
| Original E-Man and Michael Mauser | 1 | 7 | First | 1985-86 | $2.00 | |
| Original Ghost Rider | 1 | 1 | Marvel | 1992-93 | $2.25 | |
| Original Ghost Rider | 1 | 2 | Marvel | 1992-93 | $2.25 | |
| Original Ghost Rider | 1 | 3 | Marvel | 1992-93 | $2.25 | |
| Original Ghost Rider | 1 | 4 | Marvel | 1992-93 | $2.25 | |
| Original Ghost Rider | 1 | 5 | Marvel | 1992-93 | $2.25 | |
| Original Ghost Rider | 1 | 6 | Marvel | 1992-93 | $2.25 | |
| Original Ghost Rider | 1 | 7 | Marvel | 1992-93 | $2.25 | |
| Original Ghost Rider | 1 | 13 | Marvel | 1992-93 | $2.25 | |
| Original Ghost Rider Rides Again | 1 | 1 | Marvel | 1991-92 | $2.25 | |
| Original Ghost Rider Rides Again | 1 | 2 | Marvel | 1991-92 | $2.25 | |
| Original Ghost Rider Rides Again | 1 | 4 | Marvel | 1991-92 | $2.25 | |
| Original Ghost Rider Rides Again | 1 | 5 | Marvel | 1991-92 | $2.25 | |
| Original Ghost Rider Rides Again | 1 | 6 | Marvel | 1991-92 | $2.25 | |
| Original Ghost Rider Rides Again | 1 | 7 | Marvel | 1991-92 | $2.25 | |
| Orion | 1 | 7 | DC | 1999-2002 | $2.50 | |
| Others | 1 | 0 | Image | 1995 | $1.00 | |
| Others | 1 | 2 | Image | 1995 | $2.50 | |
| Others | 1 | 3 | Image | 1995 | $2.50 | |
| Out Breed 999 | 1 | 1 | Blackout | 1994 | $3.00 | |
| Out Breed 999 | 1 | 2 | Blackout | 1994 | $3.00 | |
| Out Breed 999 | 1 | 3 | Blackout | 1994 | $3.00 | |
| Out Breed 999 | 1 | 4 | Blackout | 1994 | $3.00 | |
| Out for Blood | 1 | 1 | Dark Horse | 1999 | $3.00 | |
| Out of the Vortex | 1 | 1 | Dark Horse | 1993-94 | $2.50 | |
| Out of the Vortex | 1 | 2 | Dark Horse | 1993-94 | $2.50 | |
| Out of the Vortex | 1 | 3 | Dark Horse | 1993-94 | $2.50 | |
| Out of the Vortex | 1 | 4 | Dark Horse | 1993-94 | $2.50 | |
| Out of the Vortex | 1 | 5 | Dark Horse | 1993-94 | $2.50 | |
| Out of the Vortex | 1 | 6 | Dark Horse | 1993-94 | $2.50 | |
| Out of the Vortex | 1 | 8 | Dark Horse | 1993-94 | $2.50 | |
| Out of the Vortex | 1 | 9 | Dark Horse | 1993-94 | $2.50 | |
| Out of the Vortex | 1 | 10 | Dark Horse | 1993-94 | $2.50 | |
| Outcast | 1 | 1 | Valiant | 1995 | $2.50 | |
| Outcasts | 1 | 1 | DC | 1987-88 | $2.25 | |
| Outcasts |