The Meitetsu Mikawa Line (名鉄三河線, Meitetsu Mikawa-sen) is a 39.8 km (24.7 mi) railway line in Aichi Prefecture, Japan, operated by the private railway operator Nagoya Railroad (Meitetsu) connecting Sanage Station in Toyota and Hekinan Station in Hekinan.

It originally extended beyond Hekinan to Kira Yoshida, and beyond Sanage to Nishi Nakagane, with a proposed extension to Asuke substantially constructed but subsequently abandoned (see History section below).

The Mikawa Railway opened the Ōhama-minato (now Hekinan) to Kariya-shin (now Kariya) section in 1914, and extended the line to Chiryū (old, now Mikawa Chiryū) the following year, to Koromo (now Toyotashi) in 1920 and Sanage in 1924.

Shortage of materials resulted in the rail line never being laid, and the proposed extension was formally abandoned in 1958, with the roadbed being converted to a public road, which is readily identifiable on aerial photographs.

Freight services ceased in 1984, and as a result of declining patronage, the electrification on the Sanage - Nishi Nakagane section was decommissioned in 1985, and on the Hekinan to Kira Yoshida section in 1990, DMUs then providing the passenger service.