Arrowtooth eel may refer to several species of cutthroat eels:

Shortbelly eel, Dysomma anguillare Deepwater arrowtooth eel, Histiobranchus bathybius Kaup's arrowtooth eel, Synaphobranchus kaupii Muddy arrowtooth eel, Ilyophis brunneus Pignosed arrowtooth eel, Dysomma brevirostre