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Last name Ether (Ether , 以太 , イーサー) , globally, is quite a rare surname. The family name Ether is habitual in Bangladesh, where it is a rare surname, France, where it is a very rare surname, and Honduras. Measured by absolute frequency, the name is most common in Bangladesh, the United States, and Nigeria. Likewise, Ether is the forename as well as the last name.