| Rank | Abbreviation | Meaning |
|---|
| ***** | APIN | Atlantean Pylon Implant Network
| |
| **** | APIN | Alternate Personal Identification Number
| |
| *** | APIN | AIDS Prevention Initiative Nigeria
| |
| *** | APIN | ATM (Automated Teller Machine) Personal Identification Number
| |
| ** | APIN | Association of Pharmaceutical Importers of Nigeria
| |
| * | APIN | Army Priority Intelligence Needs
| |
| * | APIN | Asian Pacific Information Network
| |
| * | APIN | Application Program Interface Network Corporation
| |
| * | APIN | Association of Private Investigators of Nigeria
| |
| * | APIN | Apera interrupta
| |
| * | APIN | Asia Pacific Information Network
| |
| * | APIN | Army Presence in the North
| |
| * | APIN | AIDS Prevention in Nigeria
| |
| * | APIN | Assault Prevention Information Network
| |
| * | APIN | Association for Programmed Instruction in the Netherlands
| |
| * | APIN | Asian Pacific Islander Network
| |
| * | APIN | Applications Programs Input File
| |
| * | APIN | Asia Pacific International Network
| |
| * | APIN | Adolescent Parent Interagency Network
| |
| * | APIN | Atlantean Pylon Imlant Network
| |
| * | APIN | Avian Pesticide Incident Network
| |
| * | APIN | American Prevention Intervention Network
| |