CTFL
| Acronym | Definition |
|---|---|
| CTFL | Cardboard Tube Fighting League |
| CTFL | Certified Tester - Foundation Level |
| CTFL | Clothing, Textiles, Footwear and Leather |
| CTFL | Concurrent Transaction Frame Logic (computer science) |
| CTFL | Concept of Truth in Formalized Languages (metamathematics; Alfred Tarski paper) |
| CTFL | Chilliwack Touch Football Leauge (Canada) |