Ryōsuke Ishizu

was a Japanese photographer whose work was included in 328 Outstanding Japanese Photographers. He was associated with the New Photography (shinkō shashin) movement of the 1930s. Born in Okayama and active as an editor in Tokyo, he later returned to his home region, where he became an influential figure in photography circles around the Chūgoku and San'in area.

Career Ishizu was born in Okayama, Okayama Prefecture, in 1907. He enrolled at Keiō University but left without graduating in 1932 and returned to Okayama. Around this time his photographs of children began to appear in photography magazines, bringing him sudden public attention. Around 1950 ill health forced Ishizu to stop working; he spent the remainder of his life in Okayama, where he devoted himself to mentoring younger photographers. He recommended both Shōji Ueda and Yōichi Midorikawa for membership in the Ginryūsha.

Ishizu's own work centered on children and the life of the local community; his series The Lives of Children (こどもの生活) dates from 1937–38 and is held in the collection of the Yonago City Museum of Art.