OX
| Acronym | Definition |
|---|---|
| OX | Oxford (University) |
| OX | Oxford Dictionary |
| OX | Oximetry |
| OX | Oxidizer (fire diamond warning code) |
| OX | Oxaliplatin (chemotherapy drug) |
| OX | Orthoxylene |
| OX | Overnight Express (trucking company; St Paul, MN) |
| OX | US Post Office Official Seals (Scott Catalogue prefix; philately) |