| Tienlun Dam | |
| Name Official: | 天輪壩 |
| Coordinates: | 24.2107°N 121.0158°W |
| Location: | Heping, Taichung, Taiwan |
| Dam Crosses: | Dajia River |
| Dam Length: | 91 m |
| Res Capacity Total: | 590,000 m3 |
| Plant Turbines: | 1 X 105 MW, 4 X 22.5 MW |
| Plant Capacity: | 195 MW |
| Plant Annual Gen: | 557 GWh |
Tienlun Dam is a concrete gravity dam on the Dajia River in Heping District, Taichung, Taiwan. Built from 1952 to 1956, the dam is the fourth in a cascade of hydroelectric dams along the Dajia River, located upstream from the Ma'an Dam and downstream of the Kukuan Dam.
The dam is 48.2m (158.1feet) high and 91m (299feet) long, with a storage capacity of 590000m2 of water.[1] It supplies water to a power station consisting of one 105 megawatt (MW) turbine and four 22.5 MW turbines for a capacity of 195 MW, generating 557 million kilowatt hours per year.[2]