- DTJ stands for Digital Technical Journal
- DTJ stands for Double Talkin’ Jive (Guns N’ Roses song)
- DTJ stands for Débroussaillage Thierry Le Jardinier (French gardening company)
- DTJ stands for Direction Technique et Juridique (French: Technical and Legal Division)
- DTJ stands for Double Tunnel Junction (physics)
- DTJ stands for Downey, Thorpe and James (Boulder, CO architects)
- DTJ stands for Dynamique Touristique des Jeunes (French: Dynamic Youth Travel; Togo)
- DTJ stands for Don’t Trash Jacksonville (anti-littering educational resource; Jacksonville, FL)
- DTJ stands for Discharged to Jesus (EMS slang)
DTJ