DDFA
| Acronym | Definition |
|---|---|
| DDFA | Direct Digital Feedback Amplifier (Diodes, Inc.) |
| DDFA | Dameron-Damron Family Association |
| DDFA | Deactivation and Decommissioning Focus Area (US Department of Energy) |
| DDFA | Decontamination and Decommissioning Focus Area (US Department of Energy) |
| DDFA | Daryl Davies Fine Art Ltd. (est. 1989; UK) |
| DDFA | Doo Doo Funk Allstars (band) |
| DDFA | Deputy Director for Force Application |