Ishibashi Kazunori was a Japanese painter active in both yōga and nihonga. His name can also be read Ishibashi Wakun and he used the art name Gyūgagen.
Kazunori is perhaps best known for Woman Reading Poetry which is currently on display at the Shimane Art Museum. Said to have been modelled after an English actress, the work is widely considered his masterpiece and has been designated as a Prefectural Cultural Property of Shimane.