| Acronym | Definition |
|---|
| YS | Yuzhno-Sakhalinsk (Russia) |
| YS | Youth Services |
| YS | Yours Sincerely |
| YS | Your Servant |
| YS | You Suck |
| YS | Yoshi's Story (video game) |
| YS | Youth Specialties (Minneapolis, MN) |
| YS | Yellow Submarine (Beatles album/song) |
| YS | Yield Strength (PSI) |
| YS | Yardstick |
| YS | Yottasecond (time measurement) |
| YS | You Stink |
| YS | Y Strainer |
| YS | Your Sinclair (magazine) |
| YS | Yellow Signal |
| YS | Yellow Shark |
| YS | yoctosecond |
| YS | Yemen (Aden) (Including Socotra Island) |
| YS | Yama Sakura (Japan) |
| YS | Young Sam Kim (former Korean president) |
| YS | Yumeshima (enterperience community) |
| YS | Youngstown & Southern Railway Company |
| YS | District Barge, Stevadoring (US Navy) |