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Last name Masser (Masa , Masser , マッサー ) , worldwide, is a common cognomen. The surname Masser is characteristic of Slovenia, where it is quite a common surname, Equatorial Guinea, where it is quite a rare surname, and Czechia. Measured by absolute frequency, the name is most common in India, Nigeria, and Philippines. Also, Masser is the forename as well as the last name.