Lessona is a comune (municipality) in the Province of Biella in the Italian region Piedmont, located about northeast of Turin and about east of Biella. As of 30 November 2025, it had a population of 2,597 and an area of .
Lessona borders the following municipalities: Casapinta, Castelletto Cervo, Cossato, Crosa, Masserano, Mottalciata.
Lessona it's produced the Lessona wine also a wine of great quality, vinified since the 12th century.