| Acronym | Definition |
|---|
| FLD | Field |
| FLD | Fielding |
| FLD | Faculté Libre de Droit (French: Free Faculty of Law) |
| FLD | Faculty Leadership Development (various organizations) |
| FLD | Flash Disk |
| FLD | Flat Display |
| FLD | Field Descriptor |
| FLD | Full Locking Differential |
| FLD | Fast Lane Daily (online newscast) |
| FLD | Fisher Linear Discriminant (computer science) |
| FLD | Francis Lavigne Développement (French medical supply company) |
| FLD | Frontal Lobe Disorder (brain) |
| FLD | Fluid Dynamics |
| FLD | Friends of the Lake District (England; caring for the countryside in the Lake District and Cumbria) |
| FLD | Forming Limit Diagram |
| FLD | Fatty Liver Disease (aka hepatic lipidosis) |
| FLD | fluorescence detector |
| FLD | Free Lunch Design |
| FLD | Fond du Lac, Wisconsin (Airport Code) |
| FLD | False Lucid Dream |
| FLD | Free Listing Day (sales listing) |
| FLD | Front de Libération des Développeurs (French software developer group) |
| FLD | Funny Looking Dad |
| FLD | Franck Liotard Développement (French automotive parts company) |
| FLD | Fleet Lease Disposal |
| FLD | Facilitative Listening Design |
| FLD | Windowpane Flounder |
| FLD | Float Lock Down (finance) |
| FLD | Falun Dafa (belief system; aka Falun Gong) |
| FLD | Fasciculus Longitudinalis Dorsalis |
| FLD | Fault Logic Diagram |
| FLD | Full Length Drift (tubing) |
| FLD | Faceless Lords of Destruction (gaming clan) |