IYI
| Acronym | Definition |
|---|---|
| IYI | Intellectual Yet Idiot |
| IYI | Indiana Youth Institute |
| IYI | Integral Yoga Institute (New York, NY) |
| IYI | If You're Interested |
| IYI | If You Insist |
| IYI | International Youth Initiative (Michigan) |
| IYI | International Yoga Institute (various locations) |