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Around the globe, Isadore (Isadore ) is quite a rare principally masculine, but scarcely girly forename. The forename Isadore is habitual in Israel, where it is quite a rare principally boy's, but scarcely girly name, the United States, where it is a rare boy's name, and South Africa, where it is a rare dominantly male, but seldom female name. Much less frequently, Isadore is the last name as well as the forename.
Isadore is also a name for the fictitious and mythical characters: Jack Good , the fictional analogon of Irving John Good (1916-2009), The Imitation Game.