- C of F stands for Construction of Facilities
- C of F stands for Certificate of Fitness (various locations)
- C of F stands for Captain of the Forecastle (US Navy rank)
- COFF stands for Common Object File Format
- C of F stands for Cost of Facilities
- COFF stands for Cut Off
- COFF stands for Central Ohio Folk Festival (Columbus, OH)
- COFF stands for Club Obsolète Ford France (French: Obsolete Ford Club France)
- COFF stands for Conservators of Fine Fabrics (est. 1977; La Habra, CA)
C of F