Khao Chum Thong Junction railway station is a railway station located in Khuan Koei Subdistrict, Ron Phibun District, Nakhon Si Thammarat. The station is a class 2 railway station, located 781.018 km (485.3 mi) from Thon Buri railway station. This station is the junction for the Southern Line mainline and the Nakhon Si Thammarat Branch Line.

Khao Chum Thong Junction opened as a junction railway station in October 1914, along the Thung Song Junction–Phatthalung section of the Southern Line. Initially, the station was called "Sam Yaek Nakhon" (lit. Three-way Junction for Nakhon [Si Thammarat]). Later the name was changed to the current name in 1917, under the orders of King Vajiravudh.

In the past Khao Chum Thong was a station that all trains must stop as it was a water and wood fueling station. However, these facilities were removed in 1982, when no more steam locomotives were used.

• Express train No. 85 / 86 Bangkok–Nakhon Si Thammarat–Bangkok
• Rapid train No. 169 / 170 Bangkok–Yala–Bangkok
• Rapid train No. 173 / 174 Bangkok–Nakhon Si Thammarat–Bangkok
• Local train No. 445 / 446 Chumphon–Hat Yai–Chumphon
• Local train No. 447 / 448 Surat Thani–Sungai Kolok–Surat Thani
• Local train No. 451/452 Nakhon Si Thammarat–Sungai Kolok–Nakhon Si Thammarat
• Local train No. 455/456 Nakhon Si Thammarat–Yala–Nakhon Si Thammarat
• Local train No. 457/458 Nakhon Si Thammarat–Phatthalung–Nakhon Si Thammarat

This junction railway station was cited in the 1965 Thai action film Chum Thang Khao Chum Thong as a backdrop of story and the theme song, which shares the same Thai title as the film and was performed by Rapin Phutai, also became a memorable luk thung (Thai country song) hit.

• 岡本和之 (1993). タイ鉄道旅行. めこん. ISBN 4-8396-0080-5.{{cite book}}: CS1 maint: location missing publisher (link)
• 杉本聖一 (2000). 魅惑のタイ鉄道. 玉川新聞社. ISBN 4-924882-29-1.
• 柿崎一郎 (2010). 王国の鉄路 タイ鉄道の歴史. 京都大学学術出版会. ISBN 978-4-87698-848-8.
• 渡邉乙弘 (2013). タイ国鉄4000キロの旅. 文芸社. ISBN 978-4-286-13041-5.
• Vassana (2009-04-03). "เพลงที่36...ชุมทางเขาชุมทอง" [Song36th...Khao Chum Thong Junction]. Oknation (in Thai). Retrieved 2019-10-09.

8°08′52″N 99°52′56″E / 8.1479°N 99.8822°E / 8.1479; 99.8822