Khun Tan railway station is a railway station on the Northern Line located in Lamphun Province, Thailand.

Khun Tan is the highest railway station in Thailand, at 578 metres (1,896 ft 4 in) above sea level.

Around the railway station is the entrance Doi Khuntan National Park, which has bungalows run by the State Railway of Thailand, for visitors' use as well.

It is the longest railway tunnel in Thailand, at 1,352.1 metres (4,436 ft 0 in) in length.

Construction took 11 years at a cost of 1.3 million baht.