The name "Sei" is a common Japanese given name that can be used for both males and females. In Japanese, the meaning of "Sei" can vary depending on the kanji characters used to write it. Some common meanings include "pure," "life," or "star." The name is often chosen for its positive connotations and aesthetic appeal. In addition to its use as a given name, "Sei" can also be found in various cultural contexts, such as in literature and art. Notable figures with the name include Sei Shonagon, a famous Japanese author and court lady from the Heian period, known for her work "The Pillow Book."