Sangū Express Electric Railway (参宮急行電鉄 Sangū Kyūkō Dentetsu), usually abbreviated as Sankyū (参急), was a private railway company that operated in Nara Prefecture and Mie Prefecture, Japan for 14 years from 1927 to 1941, when it merged with its parent company, Ōsaka Electric Railroad (Daiki). Sankyū built a single train line which serviced the cities of Sakurai, Nabari, Matsusaka, and Ujiyamada, and the company acquired a second major line as well as a small local line from Ise Electric Railway (Iseden). These lines extended northwards from Matsusaka through cities in Mie Prefecture along the coast of Ise Bay as far as Kuwana. The infrastructure of Sankyū is now owned by Kintetsu and remains in use today.