Ichizō Kobayashi (小林 一三, Kobayashi Ichizō, January 3, 1873 – January 25, 1957), occasionally referred to by his pseudonym Itsuō (逸翁), was a Japanese industrialist. He is best known as the founder of Hankyu Railway, Takarazuka Revue, and Toho. He represented Japanese capital in government.

Ichizō, also written Ichizo, Ichizou or Ichizoh is a Japanese masculine given name. People with this name include:

Hattori Ichizo (Japanese:服部 一三,Hepburn:Hattori Ichizō, March 13, 1851 – January 25, 1929) was a Japanese politician who served as governor of Hiroshima Prefecture from July to December 1898. He was also governor of Iwate Prefecture (1891–1898), Nagasaki Prefecture (1898–1900) and Hyōgo Prefecture (1900–1916). He was the first president of the Seismological Society of Japan (1880–1882), as well as president of Kyoritsu Women's University (1886–1891). He was on the faculty of the University of Tokyo and Kyoto University.