The Chengdu–Chongqing intercity railway is a 307-kilometre (191 mi) long high-speed railway that connects the cities of Chengdu (Sichuan) and Chongqing in southwestern China, with a maximum speed of 350 km/h (220 mph). The route passes through most of the same cities that the older Chengdu–Chongqing Railway does, but is significantly shorter due to the greater use of elevated sections and tunnels. The line includes four major elevated sections and two tunnels.

Chengdu–Chongqing railway or Chengyu railway, is a single-track electrified railroad in the Sichuan Basin of Southwest China between the cities Chengdu and Chongqing. Chongqing's short form name is Yu (渝) and the railway is named after the two cities. The line has a total length of 505 km (314 mi).