IU
| Abbreviation | Meaning | Tamil Meaning | Category |
|---|---|---|---|
| IU | International Unit | - | Computer Acronyms(common) |
| IU | Indiana University | - | Medical |
| IU | Instrument Unit | - | Organizations |
| IU | Interface Unit | - | Organizations |
| IU | Interface Unit | - | Organizations |
| IU | Inuktitut Language (ISO 639-1 Code) | - | Astronomy |