| Acronym | Definition |
|---|
| FDDI | Fiber Distributed Data Interface |
| FDDI | Footwear Design and Development Institute (India) |
| FDDI | Fiber Data Distributed Interface (fiber optic networking; aka Fiber-Optic Data Distribution Interface) |
| FDDI | Fiber Digital Device Interface |
| FDDI | Fiber-Optic Data Distribution Interface (fiber optic networking; aka Fiber Data Distributed Interface) |
| FDDI | Fonds Départemental de Dévéloppement Intercommunal (French: Intercommunal Development Departmental Funds) |
| FDDI | Fibre Distributed Digital Interface (fibre optics) |