| Official Name: | Evinayong |
| Pushpin Map: | Equatorial Guinea#Equatorial Guinea mainland |
| Pushpin Mapsize: | 300 |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location of Evinayong in Equatorial Guinea##Location of Evinayong in continental Equatorial Guinea |
| Subdivision Type: | Country |
| Subdivision Name1: | Centro Sur |
| Population As Of: | 2012 |
| Population Total: | 9155 |
| Population Density Km2: | auto |
| Population Metro: | 36500 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 1.45°N 44°W |
| Elevation M: | 631 |
| Blank Name Sec1: | Climate |
| Blank Info Sec1: | Am |
Evinayong (Spanish; Castilian: Evínayong pronounced as /es/)[1] is a town lying atop a small mountain in southeastern Río Muni, central Equatorial Guinea. It is the capital of the Centro Sur Province and the St. Joseph's cathedral is the episcopal see of the Roman Catholic Diocese of Evinayong. In 2001 it had a population of 7,997. It is known for its nightlife, its market and the nearby waterfalls. It also contains a prison.