The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Nakoruru (6 members)
- Namco (1 member)
- Namco franchises (1 member)
- Nameless (1 member)
- Nanami (1 member)
- Nanase (1 member)
- Naotora Ii (2 members)
- Nash (23 members)
- Natsu Ayuhara (50 members)
- Necro (57 members)
- Nemesis (2 members)
- NeoGeo Battle Coliseum (43 members)
- Ness (1 member)
- Nickelodeon All-Star Brawl (225 members)
- Nickelodeon All-Star Brawl 2 (1,439 members)
- Nickelodeon All Star Brawl 2 (1 member)
- Night Warriors: Darkstakers' Revenge (2 members)
- Night Warriors: Darkstalker's Revenge (2 members)
- Night Warriors: Darkstalkers' Revenge (311 members)
- Nina Williams (7 members)
- Ninja Masters (22 members)
- Nitara (2 members)
- Noob Saibot (3 members)
- Noob Saibot Saibot (1 member)
- Norimaro (2 members)
- Notation (3 members)
- Nova (32 members)
- Nyotengu (2 members)
- Oddball (41 members)
- Ogre (3 members)
- Old Joseph (9 members)
- Old MvC3 Pages (39 members)
- Omega Red (2 members)
- Omega Street Fighter IV (3 members)
- Omni-Man (3 members)
- Oni (6 members)
- Orion (1 member)
- Oro (70 members)
- Orochi (1 member)
- Pages using Tabber parser tag (106 members)
- Pages using duplicate arguments in template calls (33 members)
- Pages with broken file links (531 members)
- Pages with non-numeric formatnum arguments (1 member)
- Pages with script errors (13 members)
- Pages with template loops (1 member)
- Pai Chan (2 members)
- Paul Phoenix (8 members)
- Peacemaker (4 members)
- Peach (1 member)
- People (3 members)