Maser (disambiguation)

A maser is a device that produces coherent electromagnetic waves.

Maser may also refer to:
 * Maser (rocket), a sounding rocket launched from Esrange in Sweden
 * Maser, Veneto, a municipality in Italy
 * Astrophysical maser, a naturally occurring source of stimulated spectral line emission
 * Maser, a codename later used by the DC Comics character Air Wave

People with the surname

 * Mike Maser (1947–2019), an American football coach and player
 * Werner Maser (1922–2007), German historian and author of books about Adolf Hitler