YM
- CISV International
- Dow Jones Industrial Average
- Finnish language
- List of yard and district craft of the United States Navy
- Molar concentration
- Montenegro Airlines
- YM (magazine)
- YM (selective medium)
- YM2149
- Yam (god)
- Yang Ming Marine Transport Corporation
- Yarmouth Mariners
- Yield management
- Yngwie J. Malmsteen
- Yoctometre
- Yottametre
- Young Marines
- Young Muslims (disambiguation)