| Acronym | Definition |
|---|
| YST➣Yoroiden Samurai Troopers (Japanese animation series created in the 1980s) |
| YST➣Yamaha Active Servo Technology (speakers) |
| YST➣Yahoo! Search Technology |
| YST➣Youth Sport Trust (UK) |
| YST➣Yukon Standard Time (GMT-0900) |
| YST➣Yellow Starthistle |
| YST➣You Sexy Thing |
| YST➣Yolk Sac Tumor |
| YST➣Youth Service Team |
| YST➣Youth Services of Tulsa |
| YST➣You Still There? |
| YST➣TIAFT Young Scientists |
| YST➣Yokosuka Saver Tiger (band; Japan) |
| YST➣Your Spanish Translation |