YB
| Acronym | Definition |
|---|---|
| YB | Yellowbook |
| YB | Yearbook |
| YB | Young Boys (Swiss sports club) |
| YB | Yang Berhormat (Malay: The Honorable) |
| YB | Ytterbium |
| YB | Young Blood |
| YB | Young Bull |
| YB | Yorkshire Bank (UK) |
| YB | Yottabyte (10 E^24, one septillion bytes) |
| YB | Yellow Belt (Lean Six Sigma training) |
| YB | Young Buck (rapper) |
| YB | Yogi Bear (cartoon character) |
| YB | You Bet! (UK gameshow) |
| YB | Your Buddy |
| YB | Yeah, Baby |
| YB | Youth Brigade (band) |
| YB | Prototype Bomber |