Kaitarō Hasegawa
 Kaitarō Hasegawa (長谷川海太郎 Hasegawa Kaitarō 17 January 1900 - 29 June 1935) was a novelist in the early Shōwa period Japan. He wrote under three different pen names each with a unique personality and caused a sensation with the sheer brilliance of his fiction non-fiction and translations.