Maser () is a comune (municipality) in the Province of Treviso in the Italian region Veneto, located about northwest of Venice and about northwest of Treviso. As of 31 December 2004, it had a population of 4,854 and an area of .
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.
The following is a list of some Venetian villas in the municipality of Maser:.
The municipality is notable for being the place of death of the architect Andrea Palladio, creator of the famous Palladian style of architecture.
As of December 31, 2022, foreigners residents in the municipality were , i.e. % of the population. The largest groups are shown below: