| Kolga-Jaani | |
| Settlement Type: | Small borough |
| Pushpin Map: | Estonia |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location in Estonia |
| Subdivision Type: | Country |
| Subdivision Name: | Estonia |
| Subdivision Type1: | County |
| Subdivision Name1: | Viljandi County |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Kolga-Jaani Parish |
| Population Total: | 417 |
Kolga-Jaani is a small borough (Estonian: alevik) in Viljandi Parish, Viljandi County, central Estonia. Prior to the administrative reform of Estonian local governments in 2017, it was the administrative centre of Kolga-Jaani Parish. Kolga-Jaani has a population of 417.[1]