Lucifuga teresinarum is a species of cavefish in the family Bythitidae. It is endemic to Cuba.
This species reaches a length of .
The fish is named for two members of the faculty at the Universidad de la Habana and colleagues of the author. Dr Maria Teresa del Valle Portilla, who is a physician and a full professor, and Maria Teresita de la Hoz Gonzalez, who is a biologist.