Jirō Nitta

is the pen name of Japanese historical novelist and meteorologist . He was born in an area that is now part of the city of Suwa, Nagano Prefecture, Japan.

Career His uncle was the famed meteorologist Sakuhei Fujiwara and his son is mathematician Masahiko Fujiwara. After retiring from the Japan Meteorological Agency, he began writing professionally. Originally a meteorologist, he wrote mainly on themes connected with mountains.

At least three of his documentary novels have been translated into English. is based on an incident in 1902 in the Hakkōda Mountains. is about the adventures of .

deals with the Meiji era entrepreneur, from northern Miyagi prefecture, who went to Canada in 1896 to export salmon roe back to Japan. In 1906, he chartered the schooner Suianmaru to smuggle 82 fellow villagers out of Japan and into Canada. They were apprehended and arrested on Vancouver Island without passports but allowed to stay in Canada thanks to negotiations by (aka Fred Yoshy) of the Japanese consulate in Vancouver.

From 1963 to 1967, he was in charge of the project to construct Mount Fuji Radar System .

His 1973 two-volume novel has been adapted into a manga series of the same title in which he is credited as writer.