Ryoko Yamagishi, born 1947 in Hokkaidō, is a female manga artist. She is one of the members of the Year 24 Group. In 1983, she won the Kodansha Manga Award for shōjo for Hi Izuru Tokorono Tenshi, and in 2007 she won Grand Prize for the 11th Annual Tezuka Osamu Cultural Prize for Maihime Τερψιχόρα. (The Dancing Girl; Terpsichore).
Ryoko Yamagishi is an excellent mangaka.