The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Mega map raid (1 member)
- Mentoring (3 members)
- Michigan (0 members)
- Minnesota (0 members)
- Missing Documentation (0 members)
- Missing Template Documentation (80 members)
- Mississippi (0 members)
- Missouri (0 members)
- Montana (0 members)
- Move to new Mbox format (2 members)
- Místa (0 members)
- Namespace manipulation templates (1 member)
- Navbox (1 member)
- Navbox (navigational) templates (1 member)
- Navboxes (1 member)
- Navigational boxes (2 members)
- Nearly orphaned pages (0 members)
- NeedPage (3 members)
- Need to move to Main NS (3 members)
- Nevada (0 members)
- New (28 members)
- New Hampshire (0 members)
- New Jersey (0 members)
- New Mexico (0 members)
- New Road Layer (36 members)
- New York (0 members)
- Node (4 members)
- Noindexed pages (51 members)
- North Carolina (0 members)
- North Dakota (0 members)
- Norway (1 member)
- Notable revision 2005/3/21 (2 members)
- Notable revision 2015/2/4 (1 member)
- Notable revision 9/13/90 (1 member)
- Nuevo (2 members)
- Obce (0 members)
- Obsolete (2 members)
- Ohio (0 members)
- Oklahoma (0 members)
- Oregon (0 members)
- Page-section templates (1 member)
- Page Formatting Templates (4 members)
- Page Message Templates (3 members)
- Page message templates (1 member)
- Pages Needing Attention (32 members)
- Pages using duplicate arguments in template calls (10 members)
- Pages using invalid self-closed HTML tags (3 members)
- Pages with broken file links (26 members)
- Pages with ignored display titles (3 members)
- Pages with template loops (1 member)
- Parking Lot (1 member)
- Parking Lot Road (3 members)
- Pendente (0 members)
- Pending deletion (0 members)
- Pennsylvania (1 member)
- Philippines (0 members)
- Place (9 members)
- Placeholder templates (1 member)
- Plantilla (9 members)
- Poland (0 members)
- Portugal (0 members)
- Potentially outdated (2 members)
- Programming typing-aid templates (1 member)
- Proyecto Wiki Español (0 members)
- Ramp (1 member)
- Red Links (0 members)
- Request for deletion (0 members)
- Resolution templates (1 member)
- Review For Subpages (0 members)
- Review Purpose (1 member)
- Review redirects (6 members)
- Revision (13 members)
- Revisión (1 member)
- Rhode Island (0 members)
- Road Type (11 members)
- Road Type Templates (42 members)
- Road types and names (1 member)
- Runway/Taxiway (1 member)
- Sample responses (15 members)
- Schweiz (0 members)
- Script Subpage (3 members)
- Search (2 members)
- Search templates (2 members)
- Segment (4 members)
- Semantic markup templates (1 member)
- Sidebar templates (1 member)
- Singapore (0 members)
- Skripty (0 members)
- Slovenia (0 members)
- South Africa (0 members)
- South Carolina (0 members)
- South Dakota (0 members)
- Southeast (0 members)
- Spain (0 members)
- Street (1 member)
- String manipulation templates (2 members)
- Style Guides (11 members)
- Suisse (0 members)
- Supermedic (1 member)
- Sv (0 members)