The name "Sei" is a given name that can be found in various cultures, particularly in Japan. In Japanese, "Sei" (生) can mean "life" or "birth," and it is often used in combination with other characters to create unique meanings. The name is typically used for both males and females, depending on the kanji characters chosen. In addition to its Japanese origins, "Sei" can also be a name in other cultures, such as in Chinese, where it may have different meanings based on the characters used. The name is relatively uncommon but carries a sense of simplicity and elegance, making it appealing to many parents.