Rintaro (りんたろう, Rintarō, born January 22, 1941 in Tokyo, Japan) is the pseudonym of Shigeyuki Hayashi (林 重行, Hayashi Shigeyuki), a well-known director of anime. He works frequently with the animation studio Madhouse (which he co-founded), though he is a freelance director not employed directly by any one studio. He began working in the animation industry—at age 17—as an in-between animator on the 1958 film Hakujaden.