YSU
| Acronym | Definition |
|---|---|
| YSU | Yerevan State University |
| YSU | Youngstown State University |
| YSU | Yanshan University (China) |
| YSU | York Simpson Underwood (real estate firm; North Carolina) |
| YSU | Yonsei University (South Korea) |
| YSU | Yakutsk State University (Russia) |
| YSU | Youth Service Unit (various locations) |
| YSU | Yokohama Shosen Unyu (Japan) |