The Saint-Étienne to Lyon line is a railway linking Saint-Étienne to Lyon. The line was built between 1828 and 1833 by Camille Seguin and Marc Seguin at a cost of 14,500,000 FRF.

Saint-Étienne, also written St. Etienne, is a city and the prefecture of the Loire département, in eastern-central France, in the Massif Central, 60 km southwest of Lyon, in the Auvergne-Rhône-Alpes r