Hanoi–Lào Cai Railway (Vietnamese: Đường sắt Hà Nội–Lào Cai) is a 296 km (184 mi) railway line serving northern Vietnam.

It is a single-track metre gauge line connecting Hanoi with Lào Cai, on the China-Vietnam border in Lào Cai Province.

[1] It is the Vietnamese section of the metre gauge Kunming–Haiphong railway.

At the border, the Hanoi–Lào Cai railway connects with Kunming–Hekou railway of China.

This article about rail transport in Vietnam is a stub.