Maser (Mazer) is a comune (municipality) in the Province of Treviso in the Italian region Veneto, located about 50 kilometres (31 mi) northwest of Venice and about 25 kilometres (16 mi) northwest of Treviso.

As of 31 December 2004, it had a population of 4,854 and an area of 26.0 square kilometres (10.0 sq mi).

[3] The municipality of Maser contains the frazioni (subdivisions, mainly villages and hamlets) Coste, Crespignaga, and Madonna della Salute.

Maser borders the following municipalities: Altivole, Asolo, Caerano di San Marco, Cornuda, Monfumo.

[4] The municipality is notable for being the place of death of the architect Andrea Palladio, creator of the famous Palladian style of architecture.