| Acronym | Definition |
|---|
| ORAS➣Omega Ruby and Alpha Sapphire (Pokémon) |
| ORAS➣Oil Region Astronomical Society |
| ORAS➣Organized Response for the Advancement of Society (Philippines) |
| ORAS➣Organisatie Rationele Studenten (Netherlands) |
| ORAS➣Oral Recurrent Aphthous Stomatitis |