Khao Tao railway station is a railway station located in Nong Kae Subdistrict, Hua Hin District, Prachuap Khiri Khan. It is a class 3 railway station located 225.402 km (140.1 mi) from Thon Buri railway station.

On 5 October 2009, at 04:20 am, Express No. 84 Trang-Bangkok derailed at Khao Tao Railway Station when it was entering a passing loop at 105 km/h. It was believed to have been caused by the driver falling asleep on duty. This was due to the fact that the train was scheduled to stop at the passing loop of Wang Phong, the following station. However, the train went past a red light into the Wang Phong-Khao Tao section. At Khao Tao, a freight train was stopped, and in order to clear the way and the express had to be switched to the passing loop at Khao Tao. The express went beyond the speed limit and thus causing 6 carriages to derail. The accident caused 7 deaths and 88 injuries, at an estimated total of about 230 million baht in losses. Train services on the Southern Line were suspended for the rest of the day. The accident was considered one of the worst rail accidents throughout the railway's history.

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