| VPN | Virtual Private Network |
| GVPN | Global Virtual Private Network |
| PVN | Private / Programmable Virtual Network |
| SVPN | Secure Virtual Private Network |
| VPDN | Virtual Private Data / Dialup Network |
| VPDS | Virtual Private Data Service |
| PPN | Private Packet Network |
| P-NNI | Private Network Node Interface |
| PINX | Private Integrated Services Network Exchange |
| VIP | Virtual IP Network |
| VNET | Virtual Network |
| VNA | Virtual Network Architecture |
| NVT | Network Virtual Terminal |
| VDN | Virtual Data Network |
| VSN | Virtual Switched Network |
| VNC | Virtual Network Computing |
| AVN | Ameritech Virtual Network [engl.] |
| VUEN | Virtual University Education Network |
| AVN | Adobe Virtual Network [engl.] |
| VLAN | Virtual Local Area Network |
| VLAN | Very / Virtual Local Area Network |
| VINES | Virtual Network / Networking System / Software [Banyan] |
| PPV | Private Pflegepflichtversicherung |
| PE | Private Equity privates Beteiligungskapital |
| PKV | Private Krankenversicherung |
| PM | Private Mail |
| PAV | Private Altersvorsorge |
| PN | Private Nachricht |
| PL | Private Line |
| PAX | Private Automatic eXchange |
| PBX | Private Branch Exchange |
| PRMD | Private Management Domain [X.400] |
| PCT | Private Communication Technology |
| PSS | Private Signalling System |
| PPP | Private Public Partnership Entwicklungspartnerschaft von Staat und Wirtschaft |
| PSKV | Private Studentische Krankenversicherung |
| PMR | Private Mobile Radio |
| LPR | Landeszentrale für private Rundfunkveranstalter Ludwigshafen |
| ZPUe | Zentralstelle für Private Überspielungsrechte |
| ISPBX | ISDN Private Branche Exchange |
| PIPE | Public Investment in Private Equity |
| CPBX | Computerized Private Branch Exchange |
| pacx | Private Automatic Computer eXchange |
| P3P | Platform for Privacy / Private Preferences |
| MSPE | Mercenaries, Spies & Private Eyes ein Rollenspiel |
| PABX | Private Access / Automatic Branch Exchange |
| EPSCS | Enhanced Private Switched Communications Service |
| dv | Deutscher Verein für öffentliche und private Fürsorge e. V. Berlin, http://www.deutscher-verein.de |
| B2P | Business To Private [phonetischer Begriff] [engl.] Geschäftsprozesse zwischen Unternehmen und Verbauchern |
| PABX | Private Automatic Branch eXchange [telephony] |