- YSM stands for Yahoo! Search Marketing
- YSM stands for Yale School of Medicine
- YSM stands for Yonge Street Mission (Canada)
- YSM stands for Yourdon Structured Method
- YSM stands for Fort Smith, Northwest Territories, Canada (Airport Code)
- YSM stands for You Slay Me
- YSM stands for Yourdon Structured Methodology
YSM