Huaizhou or Huai Prefecture (懷州) was a zhou (prefecture) in imperial China centering on modern Qinyang, Jiaozuo, Henan, China. It existed (intermittently) from 467 to 1257.

The administrative region of Huaizhou in the Tang dynasty falls within modern Henan. It probably includes parts of modern:

• Under the administration of Jiaozuo, Henan:
  • Jiaozuo: Jiefang District, Shanyang District, Zhongzhan District, Macun District
  • Qinyang
  • Xiuwu County
  • Wuzhi County
  • Bo'ai County
• Under the administration of Xinxiang, Henan:
  • Huojia County

Between 619 and 621 during the Tang dynasty, the headquarter was temporarily moved west to Jiyuan, Henan.

• Shi Weile, ed. (2005). Zhongguo Lishi Diming Da Cidian (中国历史地名大词典) [Large Dictionary of Chinese Historical Place Names] (in Chinese). China Social Sciences Press. p. 1311. ISBN 7-5004-4929-1.