Yukio is a common Japanese name that can be used for both boys and girls. The name often means "happy" or "man" depending on the kanji characters used. It is popular in Japan and can be found in various forms of media, including literature and anime. In addition to being a name, Yukio is also associated with notable figures, such as Yukio Mishima, a famous Japanese author and playwright known for his controversial views and dramatic life. The name may also appear in various cultural contexts, including manga and video games, where characters named Yukio often embody unique traits and stories.