CFB
- Bacteroidota
- Cabo Frio International Airport
- Call Forwarding
- Caminho de Ferro de Benguela
- Canadian Forces base
- Carrollton-Farmers Branch Independent School District
- Catford Bridge railway station
- Circulating fluidized bed
- Circulating fluidized bed combustion
- Clinical trial
- Clube de Futebol «Os Belenenses»
- College football
- Compact fluorescent lamp
- Complement factor B
- Continental flood basalt
- Current-feedback operational amplifier
- Oceanic climate
- Swedish Central Federation for Voluntary Military Training
- Swiss Federal Banking Commission