KY
| Acronym | Definition |
|---|---|
| KY | Kentucky (US postal abbreviation) |
| KY | Key |
| KY | KY Jelly (lubricant) |
| KY | Cayman Islands (ISO country code, top level domain) |
| KY | Kerry (Irish county code) |
| KY | Kirkcaldy (postcode, United Kingdom) |
| KY | Kvalificerad Yrkesutbildning (form of education in Sweden) |
| KY | Karat Yellow Gold |
| KY | Kapustin Yar (cosmodrome) |
| KY | Kauppakorkeakoulun Ylioppilaskunta (Helsinki School of Economics; Student Union) |
| KY | Keying Device |
| KY | Kilo Years (scientific data) |
| KY | Linhas Aereas, Sao Tome and Principe (IATA airline code) |