Wikipedia
SDJ
SDJ may mean:
- Democratic Farmers League of Sweden (Swedish: )
- Sammy Davis, Jr. (1925–1990), American entertainer
- Sendai Airport, located in Natori, Miyagi, Japan
- Seven Day Jesus, a Christian rock band
- Software Disk Jockey
- Spiel des Jahres, a board and card game award
- Suundi language, a Bantu language
- Survey Developer Library for Java