| Name | Map Tool Token Link | Type |
|---|---|---|
| Sahuagin | |
Monstrous humanoid |
| Salamander | RPTok | Outsider |
| Satyr | |
Fey |
| Giant Scorpion | RPTok | Vermin |
| Sea Hag | |
Monstrous humanoid |
| Sea Serpent | RPTok | Magical beast |
| Shadow | |
Undead |
| Greater Shadow | |
Undead |
| Shadow Mastiff | |
Outsider |
| Shambling Mound | |
Plant |
| Dire Shark (Megalodon) | RPTok | Animal |
| Shark | RPTok | Animal |
| Shocker Lizard | |
Magical beast |
| Shoggoth | RPTok | Ooze |
| Skeletal Champion | RPTok | Undead |
| Human Skeleton | RPTok | Undead |
| Skum (Ulat-Kini) | RPTok | Monstrous humanoid |
| Giant Slug | RPTok | Vermin |
| Constrictor Snake | |
Animal |
| Venomous Snake | RPTok | Animal |
| Spectre | |
Undead |
| Sphinx (Gynosphinx) | RPTok | Magical beast |
| Giant Spider | RPTok | Vermin |
| Giant Squid | RPTok | Animal |
| Squid | RPTok | Animal |
| Stirge | |
Magical beast |
| Svirfneblin | RPTok | Humanoid |