Yinhai District (simplified Chinese: 银海区; traditional Chinese: 銀海區; pinyin: Yínhǎi Qū; literally: "Silver sea", Cantonese: Ngan Hoi) is a district of Beihai City, Guangxi, People's Republic of China. It has 7 neighbourhood committees and 39 village committees under the administration of five towns.
- Area: 423 square kilometres (163 sq mi)
- Population: 130,000
- District seat: at Mingzhu Avenue (明珠大道)
Coordinates: 21°28′43″N 109°07′49″E / 21.47861°N 109.13028°E