| Scientific name | Authority | Common English name | Common Korean name | Distribution |
| Dinodon rufozonatum rufozonatum | Cantor | Red-banded snake | 능구렁이 | Throughout |
| Elaphe davidi | Sauvage, 1884 | David's ratsnake | 세줄무늬뱀 | Found in North Korea and likely occurs in adjacent areas of northwestern South Korea |
| Elaphe dione | Pallas | Steppe rat snake or Dione rat snake | 누룩뱀, 시루레기, 밀뱀 | Common throughout |
| Elaphe schrenckii, Elaphe anomala | Strauch | Amur rat snake, Korean rat snake, Russian rat snake | 먹구렁이 or 흑질백장 when black, 황구렁이 when brown/yellow | Common throughout mainland; not found on Jeju |
| Elaphe taeniura taeniura | Cope | Korean beauty snake | 줄꼬리뱀 | Found only in North Korea |
| Gloydius brevicauda | Stejneger, 1907 | Short-tailed mamushi | 살모사 | Throughout mainland; not found on Jeju |
| Gloydius saxatilis | Emelianov | Rock mamushi | 까치살모사 | In the higher reaches of the Taebaek and Sobaek Mountains |
| Gloydius ussuriensis | Emelianov | Ussuri mamushi | 쇠살모사 | Throughout |
| Hebius vibakari ruthveni | Van Denburgh | Asian keelback or Japanese keelback | 대륙유혈목이 | Most common in the south, particularly Jeju |
| Hydrophis cyanocinctus | Daudin, 1803 | Annulated sea snake | 얼룩바다뱀 | |
| Hydrophis melanocephalus | Gray, 1849 | Slender-necked sea snake | 먹대가리바다뱀 | |
| Oocatochus rufodorsatus | Cantor, 1842 | Chinese garter snake, frog-eating rat snake, or red-backed rat snake | 무자치, 무좌수, 물뱀, 떼뱀 | Throughout |
| Orientocoluber spinalis | Peters | Slender racer | 실뱀, 줄뱀 | Throughout; most common in the south |
| Pelamis platurus | Linnaeus, 1766 | Pelagic sea snake or yellow-bellied sea snake | 바다뱀 | |
| Rhabdophis tigrinus tigrinus | Boie | Tiger keelback | 유혈목이, 꽃뱀 | Common throughout |
| Sibynophis collaris | Gray | Black-headed snake or collared snake | 비바리뱀 | Jeju |
| Vipera berus sachalinensis | | Common viper | 북살모사 | North Korea |