| Karjasoo | |
| Settlement Type: | Village |
| Pushpin Map: | Estonia |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Estonia |
| Subdivision Type: | Country |
| Subdivision Name: | Estonia |
| Subdivision Type1: | County |
| Subdivision Name1: | Viljandi County |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Põhja-Sakala Parish |
| Population Total: | 7 |
| Population As Of: | 2009 |
Karjasoo is a village in Põhja-Sakala Parish, Viljandi County in central Estonia, located about 10km (10miles) west of the town of Suure-Jaani, the administrative centre of the municipality.[1] Most of the village's territory is covered by the northern part of Kuresoo Bog, which is part of Soomaa National Park. In 2009 Karjasoo had a population of 7.[2]
The composer, organist, and folk song collector Mart Saar (1882–1963) was born in Hüpassaare, which is now part of the village of Karjasoo.