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In all the world, Chasles (Chasles , 沙勒 , Шаль ) is a rare principally masculine, but very seldom female given name. The first name Chasles is characteristic of the Democratic Republic of the Congo, where it is a rare masculine name, and China, where it is an extremely rare feminine name. More prevalently, Chasles is the last name as well as the forename.