Shōjo Sekai (少女世界, "Girls' World") was one of the first shōjo magazines in Japan. It was published by Hakubunkan beginning in 1906 and was initially edited by renowned children's author Sueo Iwaya (巌谷 孝雄), better known by the pen name (巌谷 小波). Shōjo Sekai was created as a sister magazine to Shōnen Sekai (少年世界, "The Youth's World"), which was also edited by Iwaya, and which began publication in 1895. The final issue of Shōjo Sekai was the December 1931 issue.