IX
| Acronym | Definition |
|---|---|
| IX | Index |
| IX | 9 (Roman numeral) |
| IX | Interference |
| IX | Investigation(s) |
| IX | Ion Exchange |
| IX | Ion Exchanger |
| IX | Internet Exchange |
| IX | International Exchange |
| IX | Orix Corporation (stock symbol; Japan) |
| IX | Interexchange |
| IX | Interactive Executive |
| IX | Information Exploitation |
| IX | Unclassified Miscellaneous |