UY
| Acronym | Definition |
|---|---|
| UY | Uruguay |
| UY | Urusei Yatsura (Japanese comic/anime) |
| UY | Cameroon Airlines (IATA airline code) |
| UY | University of Yamanashi (Yamanashi, Japan) |
| UY | Up Yours |
| UY | Upper Yukon |
| UY | Universal Youth |
| UY | Underwriting Year (insurance) |
| UY | Paid Reply Postal Card (Scott Catalogue prefix; philately) |