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Worldwide, Y. (Y. , واي , ヤング ) is a common unisex first name. The first name Y. is habitual in Taiwan, where it is quite a rare gender-neutral name, Indonesia, and Libya, where it is a rare masculine name. Not in comparison with a country's population, it most frequently occurs in Indonesia, Taiwan, and China. Likewise, Y. is the last name as well as the forename.
Y. is also a name for the fictitious and mythical characters: Y. Shudzhig , the Pen name often used by Haim Abir-Ritterman, Moshe Goldman, Moshe Brodzerzon, Sholem Aleichem, Isaac Yasonovits, Y. Tsevi (Yisrael Shumacher), Yosef Heylbum when creating works for Dzigan and Shumacher.