QBD

QBD may stand for:


 * QBD (electronics)
 * Quantum brain dynamics, a Quantum mind theory
 * Quasi-birth-death process
 * Quality by Design (QbD)
 * Queen Black Dragon, a boss monster in the MMORPG RuneScape
 * Queen's Bench Division
 * Queensland Book Depot
 * Quick Business Deposit, a trademark of Bank of America