SPN
The abbreviation SPN denotes:
- Saipan Airport , IATA code for the airport in the Northern Mariana Islands
- the scheduling algorithm Shortest-Processing-Time, see Shortest-Job-First
- Substitution-Permutation Network , a design principle for block ciphers
- the protein sialophorin , also known as CD43
SPN as a distinguishing mark on license plates:
- Germany: Spree-Neisse district
