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

• Articles which use infobox templates with no data rows‏‎ (2 members)
• Dead Languages‏‎ (1 member)
• Exclude in print‏‎ (1 member)
• Intricate templates‏‎ (0 members)
• Language articles missing Glottolog code‏‎ (0 members)
• Language articles with unsupported infobox fields‏‎ (0 members)
• Language articles without language codes‏‎ (0 members)
• Language articles without speaker estimate‏‎ (0 members)
• Language infobox templates‏‎ (1 member)
• Languages without family color codes‏‎ (0 members)
• Lua-based templates‏‎ (4 members)
• Navigational boxes‏‎ (1 member)
• Pages using duplicate arguments in template calls‏‎ (0 members)
• Pages with broken file links‏‎ (4 members)
• Pages with script errors‏‎ (0 members)
• Sidebar templates‏‎ (1 member)
• Templates that add a tracking category‏‎ (1 member)
• Wikipedia metatemplates‏‎ (1 member)