| Kaeng Khoi Junction | |
| Native Name: | ชุมทางแก่งคอย |
| Native Name Lang: | th |
| Address: | Riabsantisuk Road, Kaeng Khoi Subdistrict, Kaeng Khoi district |
| Borough: | Saraburi |
| Country: | Thailand |
| Operator: | State Railway of Thailand |
| Manager: | Ministry of Transport |
| Platforms: | 4 |
| Tracks: | 15 |
| Structure: | Concrete building |
| Parking: | Yes |
| Code: | กค. |
| Classification: | Class 1 |
| Mapframe: | yes |
| Mapframe-Zoom: | 14 |
Kaeng Khoi Junction railway station is a railway station located in Kaeng Khoi Subdistrict, Kaeng Khoi district, Saraburi province. It is a class 1 railway station located 125.1061NaN1 from Bangkok railway station. It opened on May 1, 1897 as part of the Northeastern Line Ayutthaya–Kaeng Khoi Junction section. In 1956, the station became a junction when a line branched off to Suranarai Station. Then in 1995, another line from Khlong Sip Kao Junction for freight trains only linked to the Northeastern Mainline.