Katsuji Matsumoto(松本かつぢ, 1904 – 1986) was a Japanese illustrator and shōjo manga artist. Matsumoto's 16-page The Mysterious Clover (1934) is recognized as a pioneering work in the field of manga, but he is best known for his shōjo manga Kurukuru Kurumi-chan, serialized from 1938 to 1940, and again from 1949 to 1954.