日本倭糯鳗（学名：Coloconger japonicus），又名日本短尾康吉鳗，为倭糯鳗科短尾康吉鳗属下的一个种。

Coloconger japonicus is an eel in the family Colocongridae (worm eels/short-tail eels). It was described by Yoshihiko Machida in 1984. It is a marine, deep-water dwelling eel which is known from the East China Sea. It dwells at a depth range of 750-760 metres. Males can reach a maximum total length of 56 centimetres.