Fisini (Greek: Φισίνη) is a village and a community in the southeastern part of the island of Lemnos, Greece.

According to tradition the settlement was originally built towards the west near the coast, at the locality Paliomantra.

The move of the village must have taken place at the end of the 18th century, which coincides with an increase of pirate attacks.

Also in the new location the villagers had to protect themselves against pirates, and built unique underground shelters known as moursa.

On old maps it is referred to as "Neptune hill" (Colle di Nettune) (Porcacchi, 1572), Neptunius Collis (Ortelius, 1589 and Mercator, 1607 and 1630).