Kaoru Ohno (大野 芳 Ōno Kaoru, 10 August 1941) is a Japanese non-fiction writer.
Ohno was born in Aichi Prefecture and graduated from the Meiji University School of Law. He worked for a publishing company and as a magazine reporter before becoming a full-time author. In 1982, in the first annual Ushio Awards, his book Kitabari took the Special Prize in Nonfiction. Kodansha published his first novel, Hungary Bukyoku wo Mouichido, in 1989. He has written several books related to Japanese military history, with particular focus on the World War II era.