東海 or 东海 means "East Sea" or "Eastern Sea" in Chinese characters. In Chinese, it may refer to: East China Sea, a marginal sea east of China East Sea (Chinese literature), one of the Four Seas, a literary name for the boundaries of China Tunghai University, a university in Taiwan In Japanese, it may refer to: Tōkai region, a subregion of Chūbu facing the Pacific Ocean Tōkai, Ibaraki, a village in Ibaraki, Japan Tōkai, Aichi, a city in Aichi, Japan Tōkai University, a university in Tokyo, Japan Tōkai Gakki, a Japanese guitar manufacturer Tōkai (train), a train service In Korean hanja, it may refer to: Sea of Japan, a marginal sea of the western Pacific Ocean, bordered by Japan, Korea and Russia Donghae, Gangwon, a city in Gangwon, South Korea Donghae (singer), a member of the Korean music group Super Junior See also East Sea (disambiguation) Donghae (disambiguation), Korean pronunciation Tōkai (disambiguation), Japanese pronunciation Tunghai (disambiguation), Mandarin pronunciation ko:동해 (동음이의)