YK
| Acronym | Definition |
|---|---|
| YK | You Know |
| YK | Yellowknife (Northwest Territories, Canada) |
| YK | Yugen Kaisha (Japanese business designation) |
| YK | Radar Beacon (US Navy) |
| YK | Yhdistyneet Kansakunnat (Finnish: United Nations) |
| YK | Yakovlev (Soviet aircraft designer) |
| YK | Yukon Territories |
| YK | Yoko Kanno (composer and musician) |
| YK | Yleistä Keskustelua (Finnish) |