Palù del Fersina (Mocheno: Palai/Palae en Bersntol, ) is a comune (municipality) in Trentino in the northern Italian region Trentino-Alto Adige/Südtirol, located about northeast of Trento. As of 31 December 2004, it had a population of 183 and an area of .
Palù del Fersina borders the following municipalities: Bedollo, Telve, Baselga di Pinè, Telve di Sopra, Sant'Orsola Terme, Fierozzo and Torcegno.
In the census of 2001, 184 inhabitants out of 195 (94.4%) declared themselves members of the Mócheno linguistic group.