| Koigu | |
| 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: | Valga County |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Otepää Parish |
| Population Total: | 23 |
| Population As Of: | 07.02.2008 |
Koigu is a small village in Otepää Parish, Valga County in southeastern Estonia.[1] It has a population of only 23 residents (as of February 7, 2008).[2]