QCB

QCB may refer to:


 * Qatar Central Bank, the central bank of Qatar
 * QCB, a radio operating signal noting particular causes of delayed responses
 * Qualifying corporate bond, a kind of loan note
 * Quantitative & Computational Biology, often conjoined as an academic discipline
 * Queen's Commendation for Bravery, UK military and civilian awards granted for bravery
 * Queen Charlotte Basin, a structural basin mostly beneath the continental shelf off of Western Canada
 * Queensland Country Bank Stadium, a multi-purpose stadium in South Townsville, Queensland, Australia
 * Queer Campus Bangalore, a support group and safe space for queer youth in Bangalore, India
 * Quick change barrel, a style of modular firearm systems allowing rapid caliber or barrel replacement
 * Quick change body, a body/chassis switching system originally developed by Econ Engineering
 * Quidditch Club Boston, a US Quidditch team that won the 2016 US Quidditch Cup