| UIAP | UNIX International Asia / Pacific |
| PAN | Panama - Länderkürzel |
| EXPO | World Exposition Weltausstellung |
| WL | Aeroperlas [IATA-Airline-Code / Panama] |
| MPE | Maximum Permissible Exposition |
| COMDEX | Computer Dealers' Exposition |
| CM | COPA Airlines [IATA-Airline-Code/ Panama] |
| D5 | DHL Aero Expreso [IATA-Airline-Code/ Panama] |
| FOSE | Federal Office Systems Exposition |
| AHR | Air Conditioning, Heating, Refrigerating Exposition [engl.] Messe für Klimatisierung, Heizung und Gefriertechnik in Atlanta, USA |
| Pac. Sci. | Pacific Science Zeitschrift |
| PBD | Pacific Bell Directory |
| PDT | Pacific Daylight Time |
| APAC | Asia and Pacific [engl.] Wirtschaftsraum Asien und Länder des Pazifiks |
| PNB | Pacific Northwest Bell |
| POR | Pacific Ocean Region |
| AP | Asian Pacific [engl.] Geografischer Wirtschaftsraum |
| TPG | Texas Pacific Group Inc. San Francisco, [CA], http://www.texaspacificgroup.com |
| EPR | East Pacific Rise |
| CPR | Canadian Pacific Railway |
| TPR | Trans Pacific Radio |
| UP | Union Pacific [railroad] |
| APRU | Association of Pacific Rim Universities [engl.] Verbund von 36 pazifischen Universitäten |
| LW | Pacific Wings [IATA-Airline-Code/ USA] |
| APNG | Asian Pacific Network Group [engl.] Firmenzusammenschluss |
| APFC | Asia - Pacific Forestry Commission [engl.] |
| APEC | Asiatic Pacific Economic Cooperation [engl.] 21 Staaten umfassende wirtschaftliche Zusammenarbeit, Sitz Singapur |
| FJ | Air Pacific [IATA-Airline-Code/ Fiji] |
| APSC | Asian Pacific Space Center [engl.] Weltraumkonsortium mit Sitz in Sydney |
| A&P | The Great Atlantic & Pacific Tea Company [engl.] Montvale, [NJ], http://www.aptea.com |
| ACP | African, Caribean and Pacific Countries [engl.] Wirtschaftsraum |
| APNIC | Asia Pacific Network Information Center [engl.] verwaltet Internetadressen [Domains] |
| 9J | Pacific Island Aviation [IATA-Airline-Code/ USA] |
| 7C | Columbia Pacific Airlines [IATA-Airline-Code/ USA] |
| APIPA | Asia Pacific Intellectual Property Association [engl.] |
| APN | Asia Pacific Network [for Global Change] [engl.] Klimaraum |
| 5J | Cebu Pacific [IATA-Airline-Code/ Philippinen] |
| 1Z | Sabre Pacific [IATA-Airline-Code/ Australien] |
| BL | Pacific Airlines [IATA-Airline-Code/ Vietnam] |
| SI | Sierra Pacific Airlines [IATA-Airline-Code / USA] |
| QO | Origin Pacific Airways [IATA-Airline-Code / Neuseeland] |
| AP-CCIRN | Asia/Pacific Coordinating Committee for Intercontinental Research Networks |
| CX | Cathay Pacific [IATA-Airline-Code/ China/HongKong] |
| 8P | Pacific Coastal Airlines [IATA-Airline-Code/ Kanada] |
| NPL | Nauru Pacific Line/Reederei, Nauru |
| int. | international [dt.] |
| INN | International Non-proprietary Name |
| INC | International Carrier |
| TI | Transparency International e.V. Berlin, http://www.transparency.de |
| KI | Kiwanis International |