| Name ▲ | Type | CR | Version | Book |
|---|---|---|---|---|
| Young Dragon Turtle | Dragon | 10 | 2014 | Fizban's Treasury of Dragons |
| Young Emerald Dragon | Dragon | 8 | 2014 | Fizban's Treasury of Dragons |
| Young Fire Giant | Giant | 2 | 2014 | Tales from the Yawning Portal: Against the Giants |
| Young Frost Giant | Giant | 2 | 2014 | Tales from the Yawning Portal: Against the Giants |
| Young Gold Dragon | Dragon | 10 | 2014/2024 | Multiple Books (MM, XMM) |
| Young Green Dragon | Dragon | 8 | 2014/2024 | Multiple Books (MM, XMM) |
| Young Griffon (Medium) | Monstrosity | 1 | 2014 | Icewind Dale: Rime of the Frostmaiden |
| Young Griffon (Small) | Monstrosity | 1/4 | 2014 | Icewind Dale: Rime of the Frostmaiden |
| Young Griffon (Tiny) | Monstrosity | 0 | 2014 | Icewind Dale: Rime of the Frostmaiden |
| Young Hill Giant | Giant | 1/2 | 2014 | Tales from the Yawning Portal: Against the Giants |