| Name | Type | Challenge rating | Description |
|---|---|---|---|
| Werebear, Human Form | Humanoid | 5 | |
| Werebear, Hybrid Form | Humanoid | 5 | |
| Wereboar, Boar Form | Humanoid | 4 | |
| Wereboar, Human Form | Humanoid | 4 | |
| Wereboar, Hybrid Form | Humanoid | 4 | |
| Wererat, Human Form | Humanoid | 2 | |
| Wererat, Hybrid Form | Humanoid | 2 | |
| Wererat, Rat Form | Humanoid | 2 | |
| Weretiger, Human Form | Humanoid | 4 | |
| Weretiger, Hybrid Form | Humanoid | 4 | |
| Weretiger, Tiger Form | Humanoid | 4 | |
| Werewolf, Human Form | Humanoid | 3 | |
| Werewolf, Hybrid Form | Humanoid | 3 | |
| Werewolf, Wolf Form | Humanoid | 3 | |
| White Dragon Wyrmling | Dragon | 2 | |
| Wight | Undead | 3 | |
| Will-o'-Wisp | Undead | 2 | |
| Winter Wolf | Monstrosity | 3 | |
| Wolf | Beast | 1/4 | |
| Worg | Monstrosity | 1/2 | |
| Wraith | Undead | 5 | |
| Wyvern | Dragon | 6 | |
| Xorn | Elemental | 5 | |
| Young Black Dragon | Dragon | 7 | |
| Young Blue Dragon | Dragon | 9 |