UPN
UPN is an abbreviation for:
- reverse polish notation , math notation
- Unión del Pueblo Navarro , Spanish regional party in Navarre
- Union Progressiste Nigérienne , historical party in Niger
- United Paramount Network , US television station
- Universidad Pedagógica Nacional (Colombia)
- Universidad Pedagógica Nacional (Mexico)
- U-steel normal profile (or UPN)
- Uruapan Airport in Mexico by the IATA code
- User Personalized Network , single sign-on solution from Enterasys Networks
- User principal name , RDN (relative distinguished name) with an FQDN (for e-mail and user login)
U pN - stands for:
- U pN interface , a digital interface in telephone systems for connecting system telephones
