Leptochilichthys is a genus of fishes containing four species. Leptochilichthys is the only genus in the former family Leptochilichthyidae but is now included within the broader family Alepocephalidae.

Its name derives from the Greek λεπτός (leptos, "small"); χεῖλος (cheilos, "lip"); and ἰχθύς (ichthys, "fish").

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