| Koonga Parish | |
| Native Name: | Koonga vald |
| Settlement Type: | Former municipality of Estonia |
| Flag Size: | 85px |
| Subdivision Type: | Country |
| Subdivision Name: |  Estonia |
| Subdivision Type1: | County |
| Subdivision Name1: | Pärnu County |
| Seat Type: | Administrative centre |
| Seat: | Koonga |
| Area Total Km2: | 438 |
| Population Total: | 1260 |
| Population As Of: | 01.01.2010 |
| Population Density Km2: | auto |
Koonga was a municipality located in Pärnu County, one of the 15 counties of Estonia. In 2017, Koonga Parish, Hanila Parish, Lihula Parish, and Varbla Parish were merged to form Lääneranna Parish.[1] It is one of the oldest known human settlement in Estonia.