| Mangyang-ri | |
| Native Name: | 망양리 |
| Native Name Lang: | ko |
| Settlement Type: | Ri (administrative division) |
| Pushpin Map: | South Korea Ulsan |
| Pushpin Label Position: | none |
| Pushpin Map Caption: | Location within Ulsan |
| Coordinates: | 35.4501°N 129.2866°W |
| Subdivision Type: | Country |
| Unit Pref: | Metric |
| Population Total: | 2363 |
| Population As Of: | 2012 |
| Population Density Km2: | auto |
| Hangul: | 망양리 |
| Hanja: | 望陽里 |
| Rr: | Mangyang-ni |
| Mr: | Mangyang-ni |
Mangyang-ri is an administrative division, or village, located in Onyang, Ulju County, Ulsan, South Korea. It is located east of the Busan-Ulsan expressway and north of Namchang-ri.[1]