| Huangnaihai Township | |
| Area Total Km2: | 85.87 |
| Unit Pref: | Metric |
| Timezone1: | China Standard |
| Area Code: | 974 |
| Area Code Type: | Local dialing code |
| Postal Code: | 811301 |
| Postal Code Type: | Postal code |
| Utc Offset1: | +8 |
| Population Density Km2: | auto |
| Population As Of: | 2010 |
| Population Total: | 3152 |
| Native Name: | 黄乃亥乡 |
| Subdivision Type3: | County |
| Pushpin Label Position: | bottom |
| Pushpin Map: | China Qinghai |
| Settlement Type: | Township |
| Native Name Lang: | zh-cn |
| Pushpin Label: | Huangnaihai Township |
| Subdivision Type4: | Village-level divisions |
| Subdivision Name3: | Tongren County |
| Subdivision Name2: | Huangnan Tibetan Autonomous Prefecture |
| Pushpin Map Caption: | Location in Qinghai |
| Subdivision Type2: | Autonomous prefecture |
| Subdivision Name1: | Qinghai |
| Subdivision Type1: | Province |
| Subdivision Name: | People's Republic of China |
| Subdivision Type: | Country |
| Coordinates: | 35.6161°N 102.0094°W |
| Official Name: | Huanghaihaixiang |
Huangnaihai Township (Mandarin: 黄乃亥乡) is a township in Tongren County, Huangnan Tibetan Autonomous Prefecture, Qinghai, China. In 2010, Huangnaihai Township had a total population of 3,152 people: 1,592 males and 1,560 females: 769 under 14 years old, 2,152 aged between 15 and 64 and 231 over 65 years old.[1]