The is a railway line in Aichi Prefecture, Japan, operated by the private railway operator Meitetsu (Nagoya Railroad), connecting Kamiiida Station in Nagoya with Inuyama Station in Inuyama. The track from Kamiiida to Ajima is mostly underground, a continuation of the Kamiiida Line operated by the Nagoya Municipal Subway.
The line was opened in 1931. The line was not electrified back then and used diesel multiple units for services. The Kamiiida to Komaki section electrified at 600 V DC in 1942, and the section to Inuyama electrified in 1947.
CTC signalling was commissioned on the section between Komaki and Buzan (since closed) in 1954, being the first use of this system by Meitetsu, and the voltage was increased to 1,500 V DC in 1964.
The line was double-tracked in stages between 1977 and 2003.
Nagoya Municipal Subway Kamiiida Line through services commenced on 27 March 2003. A newly built underground section between Ajima and Kamiiida stations replaced the previous above-ground section.
All stations are in Aichi Prefecture.
The Komaki Line uses the following train types:
This article incorporates material from the corresponding article in the Japanese Wikipedia.