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All over the world, هيكارو (Hikaru , هيكارو , Ijuuin) is quite a rare unisex first name. The forename هيكارو is characteristic of Japan, where it is a rare gender-neutral name, Hong Kong, where it is a rare boy's name, and Indonesia, where it is a rare gender-neutral name. Measured by absolute frequency, the name is most common in Japan, Indonesia, and Brazil. Likewise, هيكارو is the last name as well as the forename.
هيكارو is also a popular name for the fictitious and mythical characters: Hikaru Sulu , the fictional character from Star Trek, Star Trek: The Original Series; Hikaru Genji , the protagonist in Heian Chinese tale "The Tale of Genji"; Hikaru Gosunkugi , the fictional character from Ranma ½; Hikaru Shidou , the fictional character from Magic Knight Rayearth and Hikaru Hoshina , the fictional character from Star☆Twinkle PreCure, and in many other works.