| Khlong Sip Kao Junction | |
| Native Name: | ชุมทางคลองสิบเก้า |
| Native Name Lang: | th |
| Address: | Yothaka Subdistrict, Bang Nam Priao District |
| Borough: | Chachoengsao Province |
| Country: | Thailand |
| Coordinates: | 13.9072°N 101.114°W |
| Operator: | State Railway of Thailand |
| Manager: | Ministry of Transport |
| Platforms: | 2 |
| Tracks: | 3 |
| Structure: | At-grade |
| Classification: | Class 3 |
| Opened: | January 1925 (Halt) August 1995 (Junction) |
Khlong Sip Kao Junction railway station is a railway station located in Yothaka Subdistrict, Bang Nam Priao District, Chachoengsao, Thailand. The station is a class 3 railway station, and is located 85.6km (53.2miles) from Bangkok railway station. Khlong Sip Kao is named after Khlong 19 (Sip Kao is 19 in Thai), which is a man-made irrigation canal, located nearby. It is also the junction for the Eastern Line Aranyaprathet Main Line and the Phra Phutthachai Line for freight trains only to Kaeng Khoi Junction.
Khlong Sip Kao Junction opened in January 1925 as part of the Eastern Line Chachoengsao Junction–Kabin Buri section. It opened as a halt, and eventually became a junction in August 1995, as the Phra Phutthachai Line opened.