The Hainan western ring high-speed railway (Chinese: 海南西环高速铁路; pinyin: Hǎinán xī huán gāosù tiělù, often abbreviated [海南]西环高铁; [Hǎinán] Xī huán gāotiě[1]) is a high-speed railway operated by China Railway Guangzhou Group in Hainan Province.

[2] The 344 km (214 mi) long rail line runs along the western half of the island's coastline, from Haikou railway station in the north to Sanya railway station.

[3][4] The circular closed loop allows passengers to travel along the entire circumference of the island in approximately 3 hours at the shortest time, and connects all twelve coastal cities and counties, as well as having additional stops at Haikou and Sanya airports.

[6] On the rest of the railway - the much longer section from Sanya Phoenix Airport to Haikou - progress was only in its preliminary phase in 2012.

The western ring high-speed railway became officially operational and open to the public in December 2015.