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Globally, 井田 (Ида , 井田 , Ита ) is a common principally feminine, but very infrequently male first name. The first name 井田 is characteristic of Kazakhstan, where it is quite a common girly name, Russia, where it is quite a rare girly name, and Bulgaria. Measured by absolute frequency, the name is most common in Russia, Kazakhstan, and China. Very seldom, 井田 is the last name as well as the forename.
井田 is also a popular name for the fictitious and mythical characters: Ida Jungmann , the character from Thomas Mann's Buddenbrooks; Ida Gunnarsson , the fictional character of the Bert Diaries; Ida Svensson , the fictional character in Astrid Lindgren's books about Emil i Lönneberga; Ida Boucher , the character in the TV series Law & Order and Ита , character in The deceased's wife, and in many other works.