The Coimbatore–Chamrajnagar line is a proposed railway line from Coimbatore in Tamil Nadu to Chamrajnagar in Karnataka. It is a part of the Southern Railway zone of the Indian Railways. Upon construction, this line would connect Western Tamil Nadu with Karnataka. The line would give direct rail connectivity between Coimbatore and Mysore and would reduce the travel distance from Coimbatore to Mysore and Bangalore. It would also connect Tamil Nadu with the Southern districts of Karnataka.