| Kyrönjoki | |
| Name Other: | Kyro älv |
| Subdivision Type1: | Country |
| Subdivision Name1: | Finland |
| Length: | 80 - 200 km |
Kyrönjoki is a river of Finland. It is located in Southern Ostrobothnia region and flows into the Gulf of Bothnia.
By the river is the Nikkola and Pirilä riverside settlement, that is a cultural heritage site of national significance. [1]