The Effretikon to Hinwil railway line, also known as the Kempttalbahn, is a railway line in the Swiss canton of Zurich. It runs from Effretikon, where it diverges from the Zurich to Winterthur line, to Wetzikon, where it connects with the Wallisellen to Rapperswil line, and Hinwil. The line is 22.5 kilometres (14.0 mi) long, standard gauge, single track and electrified at 15 kV  16.7 Hz AC supplied by overhead line.

Effretikon is a railway station in the Swiss canton of Zürich and municipality of Illnau-Effretikon. The station, which takes its name from the village of Effretikon, is located on the Zürich to Winterthur main line at the junction point with the Effretikon to Hinwil line.