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In the entire world, Daian (代安 , Daian , Даян ) is quite a rare largely boy's, but uncommonly feminine given name. The first name Daian is characteristic of Uruguay, where it is quite a rare gender-neutral name, the Dominican Republic, where it is a rare epicene name, and Romania, where it is a rare male name. In absolute terms, the name is most common in China, Brazil, and Argentina. Likewise, Daian is the last name as well as the forename.
Daian is also a popular name for the fictitious and mythical characters: Diane de Maufrigneuse , the Honoré de Balzac character, La Comédie humaine; Jenny Schecter , the fictional character from the television series The L Word; Diane Lockhart , the fictional character from the television series The Good Wife and The Good Fight; Diane Butcher , the Fictional character from the BBC soap opera EastEnders and Diane Chambers , the Fictional character in the series Cheers, and in many other works.