Sand lizard – kivisisalik

Sea otter – kalaan, merisaarmas

Ship rat – vt Black rat

Short-tailed vole – vt Field vole

Short-tailed weasel – vt Stoat

Siberian flying squirrel – (Flying squirrel), lendorav, harilik lendorav

Siberian tiger – vt Amur tiger

Sika deer – tähnikhirv

slow-worm – (blind-worm, slowworm, blindworm), vaskuss

slowworm – vt slow-worm

Smooth newt – (Common newt), tähnikvesilik

Southern vole – (East European vole), kuhja-uruhiir

Southern white-breasted hedgehog – (East European hedgehog, White-bellied hedgehog, White-chested hedgehog), kaelussiil

Spanish lynx – ibeeria ilves

Sperm whale – kašelott, võidisvaal

Stoat – (Short-tailed weasel, Ermine), kärp

Stone marten – vt Beech marten

Striped field mouse – juttselg-hiir

Striped hyena – vööthüään

Sunda pangolin – (Malayan pangolin), Jaava soomusloom

Swift fox – ...