Meitetsu Nagoya Main Line

The Meitetsu Nagoya Main Line (名鉄名古屋本線, Meitetsu Nagoya Honsen) is a Japanese railway line operated by the private railway operator Nagoya Railroad (Meitetsu), connecting Toyohashi Station in Toyohashi with Meitetsu Gifu Station in Gifu. The line is also called the Meitetsu Main Line (名鉄本線, Meitetsu Honsen).

The line was formed through mergers of multiple local railway operators and segments of their railway lines. These lines were connected into two separate lines, one from Jingū-mae to Toyohashi, and the other from Meitetsu Gifu to Oshikirichō, each given the name "Eastern Line" and "Western Line" in 1935. The Aichi Electric Railway constructed the eastern part from 1917 to 1927. The western part was formed out of lines operated by the Nagoya Electric Railway, the Mino Electric Railroad, and the Bisai Railway. The lines ran by each operator were eventually merged into a single line by several mergers. After the formation of Meitetsu in 1935, efforts to connect the two lines were made, which was completed in 1944. The difference in voltage between the two segments were corrected by 1948, and the two segments were renamed to the Meitetsu Nagoya Main Line on the same date. Since then, Meitetsu introduced new rolling stock and removed sharp curves to compete with the Tōkaidō Main Line operated by the Japanese National Railways, and its successor Central Japan Railway Company.

Due to historical reasons, the line shares its track between Hirai Junction and Toyohashi Station with the JR Iida Line. This limits the number of trains passing through the section. Local trains terminate at Ina Station instead of Toyohashi, the terminus.