S¶
- Sand Silhouette
- Sandman
- Sandwyrm
- Sap Demon
- Sarcophagus Slime
- Sathaq Worm
- Savager
- Scheznyki
- Selang
- Serpopard
- Shabti
- Shadhavar
- Shadow Beast
- Shellycoat
- Shoggoth
- Shroud
- Skein Witch
- Skitterhaunt
- Slow Storm
- Son of Fenris
- Soul Eater
- Spark
- Spectral Guardian
- Spider of Leng
- Spider Thief
- Spire Walker
- Star-Spawn of Cthulhu
- Stryx
- Stuhac
- Subek
- Suturefly
- Scorpions
- Skeletons
- Snakes
- Sphinxes
- Spiders
- Swarms