The meaning of the Acronym UPN is...

UPN is

• User Principal Name

More Meanings For UPN:

• User Principal Name
• Undead People Naked
• The Un Popular Network
• Ubiquitous Public Network
• Under Paid Negroes
• U Peoples Network
• Under Pressure from Nincompoops
• Unlimited Pitiful N
• U Pick A Ni
• The Universal Principle Name
• Used Parts Networks
• United Programming Network
• U Poor N
• Under Payed Niggas
• Unique Project Number

UPN is also in:

• Adults
• Funnies
• NASA
• Security
• Unfiled