The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Novel Illustrations (156 members)
- Novels (12 members)
- Novus Orbis Librarium (33 members)
- Nox Nyctores (13 members)
- Nox Nyctores Wielders (26 members)
- Nu-13 (562 members)
- Observers (29 members)
- Ogawa, Kazuya (1 member)
- Old Gate (12 members)
- Oliver (3 members)
- Onlookers (4 members)
- Order (6 members)
- Organizations (29 members)
- Orie (27 members)
- Orient Town (48 members)
- Ozawa, Riku (10 members)
- Pages using Tabber parser tag (70 members)
- Pages using deprecated source tags (4 members)
- Pages using duplicate arguments in template calls (4 members)
- Pages with broken file links (11 members)
- Pages with ignored display titles (4 members)
- Pages with reference errors (2 members)
- Pakumen (51 members)
- Palette References (206 members)
- Palettes (2,418 members)
- Persona 4 Locations (4 members)
- Phase 0 Characters (10 members)
- Phase Shift 1 Characters (11 members)
- Phase Shift 2 Characters (11 members)
- Phase Shift 3 Characters (12 members)
- Phase Shift 4 Characters (16 members)
- Phase Shift Series Characters (21 members)
- Phoenix: Rettenjo (17 members)
- Pins (25 members)
- Platinum the Trinity (768 members)
- Playable Characters (35 members)
- Portraits (770 members)
- Postcards (21 members)
- Posters (30 members)
- Powers, Techniques, and Abilities (1 member)
- Praetorian Guard (1 member)
- Pre-order Bonuses (151 members)
- Prime Field Devices (12 members)
- Prime Field Interference Manifestations (4 members)
- Promotional Artwork (119 members)
- Protagonist (BBDW) (1 member)
- Puppeteers Characters (1 member)
- Purgatorium (23 members)
- Purgatory hell Characters (2 members)
- Quotes Subpage (182 members)