Categories

The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.

• Organization of American States userboxes (1 member)
• Organization of the Petroleum Exporting Countries userboxes (1 member)
• Organizations (86 members)
• Orphaned articles from November 2026 (478 members)
• Other namespace redirect templates (7 members)
• Outfitting (8 members)
• Owls in logos (1 member)
• PC backlog templates (3 members)
• PD-RU-exempt (1 member)
• PD-UA-exempt (1 member)
• PD Flags (1 member)
• PD Nigeria - Images (1 member)
• PNG Norro style 1 icons (check marks) (1 member)
• PNG created with Inkscape (1 member)
• PNG encoding (3 members)
• POTD display templates (1 member)
• POTD layout templates (2 members)
• POTD part templates (2 members)
• POTD templates (2 members)
• P icons for parking (2 members)
• Page Protection Padlock Redesign (cascade) (1 member)
• Page Protection Padlock Redesign (create) (1 member)
• Page Protection Padlock Redesign (enwiki adopted) (2 members)
• Page Protection Padlock Redesign - (Grey shackles) (2018) (2 members)
• Page Protection Padlock Redesign - All (2 members)
• Page Protection Padlock Redesign - Blue icons (1 member)
• Page Protection Padlock Redesign - Green icons (1 member)
• Page management templates (1 member)
• Page numbers (1 member)
• Pagelinks templates (3 members)
• Pagename manipulation templates (11 members)
• Pages actively undergoing a major edit (3 members)
• Pages containing element color directly (1 member)
• Pages containing links to subscription-only content (2 members)
• Pages monitored by Wikipedia bots (22 members)
• Pages proposed for deletion (0 members)
• Pages related to the WikiProject meta banner (7 members)
• Pages transcluding nonexistent sections (79 members)
• Pages used in system messages needing protection (62 members)
• Pages using Fbu template with missing parameter (1 member)
• Pages using S-rel template with ca parameter (2 members)
• Pages using Tabber parser tag (21 members)
• Pages using Template:Background color with invalid color combination (17 members)
• Pages using Template:Old peer review with broken archive link (1 member)
• Pages using Template:R with nested references (2 members)
• Pages using cite comic with no date (2 members)
• Pages using cite comic with no title (2 members)
• Pages using contains special characters for widely supported languages (2 members)
• Pages using deprecated source tags (56 members)
• Pages using div col with small parameter (2 members)