This article explores the history, meaning, and popularity of the name Mei in Japan. It is believed to have originated from China and has various meanings depending on which kanji characters are used to write it. It is now one of the most popular names given to baby girls born in Japan each year, with variations such as Meiko (明子) and Meisa (明砂). According to recent statistics from Nihonkai Research Institute, "Mei" was ranked as one of the top 10 most popular female baby names given in 2020 in Japan.