Lycodapus is a genus of marine ray-finned fishes belonging to the family Zoarcidae, the eelpouts.

[3] This genus is the sister taxon to Bothrocara, Bothrocarina and Lycogrammoides, and these four genera form a clade within the subfamily Lycodinae.

[4] Lycodapus is a compound of the Greek word or "wolf", lykos, a reference to the type genus of the Lycodinae, and apous, which means "without feet", an allusion to the lack of pelvic fins in this genus.

[7] The largest species is Lycodapus antatcticus which has a maximum published total length of 22.5 cm (8.9 in).

There is also some evidence for diel vertical migration which has been described for Lycodapus mandibularis.