- 福如东海 fúrú Dōng Hǎi boundless happinessmay your happiness be as immense as the East Sea (idiom)
- 东海县 Dōnghǎixiàn Donghai CountyDonghai county in Lianyungang, Jiangsu
- 东海大学 Dōnghǎi Dàxué Tunghai UniversityTunghai University (in Taichung, Taiwan)
- 广东海洋大学 Guǎngdōng Hǎiyáng Dàxué Guangdong Ocean University
- 东海大桥 Dōnghǎi Dàqiáo Donghai BridgeA 32.5 km bridge connecting Shanghai and the offshore Yangshan deep-water port.
- 东海岸 Dōnghǎi'àn east coastEast Coast
- 东海舰队 Dōnghǎi Jiànduì East Sea Fleet
