桃井晴子是日本的女性声优、歌手、写作家、作词家、作曲家。

桃井晴子是日本東京都出身的女性歌手、聲優、寫作家、作詞家及作曲家。東京都立代代木高等學校畢業。東海大學文學部中退。隸屬於 Plug Entertainment。

a Japanese singer, songwriter and voice actress. She also produces an all-female pop group called Afilia Saga. She was born in Tokyo, Japan and is affectionately referred to as Halko by her fans, a nickname she gave herself which is inspired by HAL 9000, the computer in the film 2001: A Space Odyssey.