| Acronym | Definition |
|---|
| YCS➣Yu-Gi-Oh Championship Series (card game) |
| YCS➣Yukon Conservation Society (Canada) |
| YCS➣Years Commissioned Service (US DoD) |
| YCS➣Young Catholic Students (various locations) |
| YCS➣Yale Classical Studies |
| YCS➣Yellow Card Scheme (adverse drug reaction reporting system; UK) |
| YCS➣You Can Succeed (student program) |
| YCS➣Youth Clinical Services (Toronto, Canada) |
| YCS➣Yarmouth Central School (Canada) |
| YCS➣Yankee Computer Society |