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Surname Geiser (Geysa , Geiser , ไกเซอร์ ) , globally, is a common cognomen. The family name Geiser is habitual in Switzerland, where it is quite a common surname, Germany, where it is quite a rare surname, and Israel. Measured by absolute frequency, this name is the most popular in the United States, Switzerland, and Germany. Very seldom, Geiser is the forename as well as the last name.