| Rank | Abbreviation | Meaning |
|---|
| ***** | INAS | INitialization and Administration System
| |
| **** | INAS | Institute of Native American Studies
| |
| **** | INAS | International Association of Sport
| |
| **** | INAS | Instituto Nacional de Asistencia Social
| |
| **** | INAS | Istituto Nazionale Assistenza Sociale
| |
| *** | INAS | International Near-Earth Asteroid Survey
| |
| *** | INAS | Interbank National Authorization Service
| |
| *** | INAS | Intelligent Noise Attenuation Strategy
| |
| *** | INAS | Institutional Need Analysis System
| |
| *** | INAS | Inertial Navigation Attack System
| |
| *** | INAS | Institut National d'Administration Sanitaire
| |
| *** | INAS | inhibition of nucleic acid synthesis assay
| |
| *** | INAS | Indium Arsenide
| |
| ** | INAS | Instituto Nazionale Assistenza Sociale
| |
| ** | INAS | Institute of Nuclear Agricultural Science
| |
| ** | INAS | Indian Naval Air Station
| |
| ** | INAS | Integrated Navigation Attack System
| |
| * | INAS | inorganic arsenic
| |
| * | INAS | Indian Naval Air Squadron
| |
| * | INAS | Integrated nav/attack system
| |
| * | INAS | Industrial Naval Air Station
| |
| * | INAS | Institutional Affirmation and Settlement
| |