Tatsuo Utagawa (宇田川 竜男, Utagawa Tatsuo, 1917 – 2006[1]) is a Japanese ornithologist and retired professor from Azabu University.
He worked at Ueno Zoo.
In 1958 he obtained his doctorate in science from Hokkaido University, on research in "A Comparative Study of chromosomes in birds".
Later he became the Section Chief for Birds and Wild Animals at the Experimental Forestry Station for the Japanese Ministry of Agriculture and Forestry.
[2] In 1959 he was awarded the Ornithological Society of Japan Award[3] and published various academic papers in the OSJ journal[4] and other academic journals.