Haruo Umezaki

 was a twentieth-century Japanese writer of short stories about Japan during and after World War II.
Born in Fukuoka, Kyushu, Umezaki studied at the 5th High School of Kumamoto University, then at the Tokyo Imperial University where he majored in Japanese literature. He then worked at the same Tokyo University in the Faculty of Education Sciences (kyōiku).
Umezaki is part of the first generation of postwar writers of Japanese literature. He spent the end of World War II at the Japanese Navy Signals Corps base in Kagoshima Prefecture, an experience on which one of his most famous short stories, "Sakurajima" (1946), was based. After the war, he worked for the "Sunao" (素直) newspaper, led by Shin'ichi Eguchi (1914–1979), in which some of his short stories were published.
In 1954, he was awarded the Shinchō Award for his novel "Suna Dokei", and the Naoki Prize for his novel "Boroya No Shunjū" (ボロ家の春秋).