大海, meaning "big sea" or "ocean", may refer to: Ōmi Station (Aichi), Iida Line station in Shinshiro, Aichi Prefecture, Japan Taikai, style of Album by Taiwan pop singer Chang Yu-sheng
People with the given name 大海 include: Hu Dahai, Ming Dynasty general of China Kwok Dai-hoi, character in Hidden Treasures (TV series) Tong Dai-hoi, character in The Brink of Law