DDJ

DDJ or variation, may refer to:

Law, justice, governance

 * Deacons for Defense and Justice, an African-American self-defense group
 * DDJ (Deputy District Judge)
 * a judicial title in the judiciary of England and Wales
 * a judicial title in the District Court (Hong Kong)

Data, computing, information science

 * Dr. Dobb's Journal, a computer science and programming magazine and journal
 * Data-driven journalism
 * Data-dependent jitter

Other uses

 * Djaru language (ISO 639 language code )
 * Dum Dum Junction railway station (station code ), Dum Dum, West Bengal India; a train station
 * Pioneer DDJ, a DJ controller series from Pioneer; see Pioneer DJ