TDDF
| Acronym | Definition |
|---|---|
| TDDF | Thai Disabled Development Foundation (Thailand; est. 1999) |
| TDDF | Thai-Danish Dairy Farm (Danish Farmer's Association) |
| TDDF | Time-Difference Direction Finders |
| TDDF | Tendon of the Deep Digital Flexor (aka Deep Digital Flexor Tendon) |