Haizhou or Hai Prefecture (æµ·å·Â) was a zhou (prefecture) in imperial China seated in modern Lianyungang, Jiangsu, China. It existed (intermittently) from 549 to 1912.
During the Yuan dynasty it was briefly named Haizhou Route (æµ·å·Âè·¯).
The modern Haizhou District in Lianyungang City retains its name.
The administrative region of Haizhou in the Tang dynasty is in modern Jiangsu. It probably includes parts of modern: