| Roja Municipality | |
| Native Name: | Rojas novads |
| Native Name Lang: | lv |
| Settlement Type: | Municipality |
| Subdivision Type: | Country |
| Established Title: | Formed |
| Established Date: | 2009 |
| Seat Type: | Centre |
| Seat: | Roja, Latvia |
| Leader Title: | Council Chair |
| Leader Name: | Eva Kārkliņa |
| Leader Party: | LZP |
| Population Density Km2: | auto |
| Postal Code Type: | Postal code |
Roja Municipality (Latvian: Rojas novads,) is a former municipality in Courland, Latvia. The municipality was formed in 2009 by merging Mērsrags parish and Roja parish the administrative centre being Roja. Since 2010 a separate Mērsrags municipality has been created. The population in 2020 was 3,368.[1]
On 1 July 2021, Roja Municipality ceased to exist and its territory was merged into Talsi Municipality.[2]