'''RDB''' may refer to:
==Computing== * Amiga rigid disk block, describing partition information * Oracle Rdb, a relational database product * Relational database
==Military== * Cordite RDB, an experimental form of explosive developed for use by the Royal Navy in World War I * Kel-Tec RDB, a semi-automatic carbine chambered for 5.56×45mm NATO rounds
==Other== * RDB (band) (RDB Rhythm Dhol Bass), a UK music production group * Richard Doll Building, located in Oxford, England * State Security Service (RDB), Serbian secret police
{{disambiguation}}