Weihai (wā´hī´) or Weihaiwei (wā´hī´wā´), city (1994 est. pop. 184,500), NE Shandong prov., China, a seaport on the Bohai. The harbor is protected by Liugong Island. The city was part of a territory (c.285 sq mi/740 sq km), called Weihaiwei, which was leased by Great Britain from 1898 to 1930. It is now a commercial port with some light industries. A campus of Shandong Univ. is there.