| Acronym | Definition |
|---|
| SPDF➣Synchronous Protocol Data Formatter |
| SPDF➣Sealed Portable Document Format |
| SPDF➣Service Based Policy Decision Function |
| SPDF➣Space Physics Data Facility |
| SPDF➣Space Physics Data Facility (NASA) |
| SPDF➣Seychelles People's Defense Force |
| SPDF➣Service-based Policy Decision Function |
| SPDF➣Sudan People's Defence Forces |
| SPDF➣Sharp, Principal, Diffuse, Fundamental (electron orbitals) |
| SPDF➣Sampling Probability Density Function |
| SPDF➣Smith Point Dance Floor |