Bang Saphan Yai station (Thai: สถานีบางสะพานใหญ่) is a railway station located in Kamnoet Nopphakhun Subdistrict, Bang Saphan District, Prachuap Khiri Khan, Thailand. It is a class 1 railway station, located 376.525 km (234.0 mi) from Thon Buri railway station.

The station opened in March 1915 as part of the Ban Krut-Bang Saphan Yai Southern Line Section. The line continued in September 1916 to Chumphon.

Train services

• Special Express 43/44 Bangkok-Surat Thani-Bangkok
• Special Express 35/36 Bangkok-Padang Besar-Bangkok
• Special Express 37/38 Bangkok-Sungai Kolok-Bangkok
• Rapid 171/172 Bangkok-Sungai Kolok-Bangkok
• Rapid 169/170 Bangkok-Yala-Bangkok
• Express 83/84 Bangkok-Trang-Bangkok
• Rapid 173/174 Bangkok-Nakhon Si Thammarat-Bangkok
• Rapid 167/168 Bangkok-Kantang-Bangkok
• Express 85/86 Bangkok-Nakhon Si Thammarat-Bangkok
• Special Express 39/40 Bangkok-Surat Thani-Bangkok
• Special Express 41/42 Bangkok-Yala-Bangkok
• Ordinary 254/255 Lang Suan-Thon Buri-Lang Suan