Silenus
Silvanus
Silvius Brabo
Simargl
Simurgh
Sin
Singa
Sint Holo
Siren
Sirenuca
Sirin
Sirrush
Sisimite
Sisiutl
Sisyphus
Sita
Siv Yis
Sjörå
Sjövættir
Skadi
Skanda
Skeleton
Skíðblaðnir (Skidbladnir)
Skin-walker
Skogsrå
Sköll
Skolopendra
Skookum
Skrzak
Skunk Ape
Skvader
Sky Woman
Sleipnir
Slender Man
Sliver Cat
Sluagh
Slue-Foot Sue
Snallygaster
Snow Lion
Sobek
Sodehiki-kozō
Sōgenbi
Sohrab
Solomonari
Soma
Somnavox
Sơn Tinh
Soraki-gaeshi
Sorobanbōzu
Sōtangitsune
Soucouyant
Spearfinger
Spectre
Sphinx
Spiriduş
Spirit
Spriggan
Spring-heeled Jack
Sprite
Squonk