| Acronym | Definition |
|---|
| IY➣Ito-Yokado (Japan) |
| IY➣Inu Yasha (Japanese anime) |
| IY➣Yemenia Yemen Airways (IATA airline code) |
| IY➣Imperial Yeomanry (British Army force of the Great War) |
| IY➣Including You |
| IY➣Initial Yield |
| IY➣Indestructible Youth (Christian youth group) |
| IY➣Iraq-Saudi Arabian Neutral Zone |