Kotoku Denjiro (?? ???, November 5, 1871 – January 24, 1911), better known by the nom de plume Kotoku Shusui (?? ??), was a Japanese socialist and anarchist who played a leading role in introducing anarchism to Japan in the early 20th century, particularly by translating the works of contemporary European and Russian anarchists, such as Peter Kropotkin, into Japanese.
He was a radical journalist, and he was executed for treason by the Japanese government.
He also contributed articles to Sekai Fujin (Women of the World), a socialist women's newspaper, and co-founded the Heimin Shimbun (Common Peoples' Newspaper) with another Yorozu Choho journalist, Toshihiko Sakai.
This paper's outspoken anti-war stance and disregard of the state's press laws landed its editors in trouble with the government on numerous occasions, and Kotoku himself served a five-month jail sentence from February to July 1905.
His final work is Kirisuto Massatsuron (?????, On the Obliteration of Christ).
In this book, he claimed that Jesus was a mythical and unreal figure.