| Acronym | Definition |
|---|
| YM | Young Money |
| YM | Yahoo! Messenger |
| YM | Yahoo! Mail |
| YM | Youth Ministry |
| YM | Yemen |
| YM | You Mean ... |
| YM | Young Men (Church of Jesus Christ of Latter-day Saints youth program) |
| YM | Yearly Meeting (Quaker religion) |
| YM | Your Mom |
| YM | Radar Beacon (US Navy) |
| YM | Young Muslims |
| YM | Yngwie Malmsteen (guitarist) |
| YM | Dredge (Self-Propelled; Navy ship designation) |
| YM | Yehudi Menuhin (classical violinist) |
| YM | Young Mafia |
| YM | Yucca Mountain |
| YM | Young Marines (Marine Corps League) |
| YM | Yao Ming (basketball player) |
| YM | Young Marine (US Marine Corps) |
| YM | Your Move |
| YM | Your Magazine |
| YM | Young Miss (magazine) |
| YM | Your Majesty |
| YM | Yardmaster (railroads) |
| YM | Yo Mamma |
| YM | You Moron |
| YM | Young & Modern |
| YM | Yesmail |
| YM | Yoctometer (10^-24, one septillionth) |
| YM | Yield Maintenance |
| YM | Yottameter (10 E24, one septillion) |
| YM | Young Mommies (website) |
| YM | You Misspelt |