QCB may refer to:

• Qatar Central Bank, the central bank of Qatar
• Qualifying corporate bond, a kind of loan note
• Queen Charlotte Basin, a structural basin mostly beneath the continental shelf off of Western Canada
• Queen City Balladeers, a non-profit folk music organization in Cincinnati, Ohio
• Queer Campus Bangalore, a support group and safe space for queer youth in Bangalore, India

• Vacuum Permittivity
• Vacuum permittivity
• Vacuum Polarization
• Vacuum polarization
• Vacuum Pump
• Vacuum pump
• Vacuum solution
• Vacuum solution (general relativity)
• Vacuum solutions
• Vacuum state
• Vacuum Technology
• Vacuum tube
• Vacuum Tube
• Vacuum tubes
• Vacuum Tubes
• Vacuum ultracentrifuge
• Vacyclovir
• Vacz
• VAD
• Vadakalai
• Vadakkumnathan
• Vadakkumnatha temple
• Vadakkunathan Temple
• Vadakkunnathan Temple
• Vadakunnathan