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

• CMC Poster- Local‏‎ (1 member)
• CMC Poster 2013‏‎ (1 member)
• CMC Posters‏‎ (1 member)
• CMC Research Brownbag Series‏‎ (8 members)
• CMC Theses‏‎ (2 members)
• CMC Thesis‏‎ (985 members)
• CMC Thesis Thesis‏‎ (1 member)
• CMu Thesis‏‎ (1 member)
• COA Memo‏‎ (1 member)
• COE Events‏‎ (1 member)
• COMMERCIAL‏‎ (1 member)
• CSSP Department‏‎ (1 member)
• CSSP Events‏‎ (4 members)
• CSSP Faculty‏‎ (111 members)
• CSSP Thesis‏‎ (57 members)
• CSWCD Events‏‎ (3 members)
• CSWCD Faculty‏‎ (32 members)
• CSWCD Thesis‏‎ (139 members)
• CS Events‏‎ (2 members)
• CS Faculty‏‎ (142 members)
• CS Unit‏‎ (1 member)
• CTID Faculty‏‎ (6 members)
• Cable TV‏‎ (1 member)
• Call for Comments‏‎ (1 member)
• Campus Bands‏‎ (136 members)
• Campus Concerts‏‎ (4 members)
• Campus Dormitories‏‎ (11 members)
• Campus Events‏‎ (362 members)
• Campus Exhibits‏‎ (1 member)
• Campus Facilities‏‎ (2 members)
• Campus Journalism‏‎ (1 member)
• Campus Play‏‎ (1 member)
• Campus Plays‏‎ (8 members)
• Care Triangle‏‎ (1 member)
• Case Study‏‎ (1 member)
• Catalogs‏‎ (4 members)
• Centennial Lecture‏‎ (2 members)
• Centennial Lectures‏‎ (2 members)
• Chemical Engineering Events‏‎ (1 member)
• Chemical Engineering Thesis‏‎ (13 members)
• Children‏‎ (1 member)
• Cinema Workshops‏‎ (1 member)
• City‏‎ (3 members)
• Civil Engineering Thesis‏‎ (13 members)
• Class Project--Feminism‏‎ (1 member)
• Class Project--Film Theory‏‎ (2 members)
• Class Project--Genre Studies‏‎ (1 member)
• Class Project--Marxist‏‎ (1 member)
• Class Project--Psychoanalysis‏‎ (1 member)
• Class Project -- Queer‏‎ (1 member)