| Siyuan Pass | |
| Map: | Taiwan |
| Map Alt: | Location in Taiwan |
| Elevation M: | 1,948 |
| Traversed: | Provincial Highway 7A |
| Location: | Datong, Yilan, Taiwan |
| Range: | Central Mountain Range |
| Coordinates: | 24.3967°N 121.3566°W |
Siyuan Pass (el. 1,948 m), formerly known as, is a mountain pass in Datong Township, Yilan County, Taiwan.[1] [2] It is located along Provincial Highway 7A near the border of Taichung City.[2] [3]