Aioi (Japanese: 相生) may refer to:
Places in Japan Aioi, Tokushima (相生町 Aioi-chō), the former name of a town in Naka District, Tokushima Aioi, Hyōgo (相生市 Aioi-shi)), a city in Hyōgo Prefecture Aioi Bridge (相生橋 Aioi hashi), a T-shaped bridge in the center of Hiroshima
Train stations in Japan Aioi Station (Gifu), located in Gujō, Gifu Prefecture Aioi Station (Gunma), located in Kiryū, Gunma Prefecture Aioi Station (Hyōgo), located in Aioi, Hyōgo, Hyōgo Prefecture Nishi-Aioi Station, also located in Hyōgo Prefecture Sanuki-Aioi Station, located in Higashikagawa, Kagawa Prefecture
People , Japanese actress and voice actress , fighter pilot in the Imperial Japanese Navy (IJN) who subsequently became a commander of the Japan Maritime Self-Defense Force (:ja:Yoshitaro Aioi), Japanese entrepreneur who played a significant role in Manchuria during the Meiji, Taisho, and Showa eras
Other Yūko Aioi (相生 祐子), a fictional character in the Japanese comedy manga Nichijou , a Japanese insurance company