The Nishio Line (西尾線, Nishio-sen) is a railway line operated by the private railway operator Nagoya Railroad (Meitetsu) in Aichi Prefecture, Japan, connecting Shin Anjō and Kira Yoshida. It originally included a branch from Nishio-guchi to Okazaki-shin on the Tokaido Main Line, which closed in 1962 (see History section below).
The Nishio Railway opened the Okazaki-shin to (old) Nishio section in 1911 as a 762mm (2ft6in) gauge line, and extended it to Kira Yoshida between 1915 and 1916. In 1926, the line was acquired by the Aichi Electric Railway, which between 1928 and 1929 converted the line to 1,067mm (3ft6in) gauge, electrified it at 600 V DC, and connected to the line from Shin Anjō (see below) at Nishio-guchi, abandoning the 762mm gauge section between there and Kami Yokosuka. That company merged with Meitetsu in 1935.
In the meantime, the Hekikai Electric Railway opened the Shin Anjō to Yonezu section, electrified at 1,500 V DC, in 1926, and extended the line to Nishio in 1928, with a connection to Kami Yokosuka opening in 1930. The company merged with Meitetsu in 1944.
The section from Nishio-guchi to Okazaki-shin was closed between 1959 and 1962, with the voltage on the Nishio to Kira Yoshida section being raised to 1,500 V DC in 1960.
With the start of the revised timetable on 16 March 2019, Nishio Line Express services began stopping at Minami Sakurai Station, and Semi-Express services were discontinued.
Former connecting lines
Minami Anjo Station: The Hekikai Electric Railway opened a 1km 1,067mm gauge freight-only line electrified at 1,500 V DC to Anjo in 1939. The company merged with Meitetsu in 1944, which commenced passenger services in 1950. The line closed in 1961.
Nishio Station: The Nishio Railway opened a 5km 762mm gauge line to Heisaka Port in 1914. Following the company merging with Aichi Electric Railway Co. in 1926, the line was converted to 1,067mm gauge and electrified at 600 V DC in 1928. The line closed in 1960 when the Nishio line voltage was increased to 1,500 V DC.
↑西尾線・蒲郡線 路線・駅情報[Nishio and Gamagōri Line - Lines and Stations information] (in Japanese). Nagoya Railroad. Retrieved 22 February 2015.
↑名鉄，3月16日に一部ダイヤ改正を実施[Meitetsu to implement partially revised timetable from 16 March]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha. 23 January 2019. Retrieved 20 January 2025.
