- ADFL stands for Association of Departments of Foreign Languages (est. 1969)
- ADFL stands for Alliance of Democratic Forces for the Liberation of Congo-Zaire (1996-1997)
- ADFL stands for Antiques Dealers Fair Limited (trade show organizer; UK)
- ADFL stands for Association for the Defense of the French Language
- ADFL stands for Artbeats Digital Film Library
- ADFL stands for Asia Diversified Fund Limited (Olympus Funds)
ADFL