Hepu is a county in southeastern Guangxi, China, under the administration of Beihai City. It is alternately romanized as Hoppo, Hopu, or Hop'u. The county was once known as Lianzhou.
Hepu borders Lianjiang in Guangdong to the southeast, Bobai County to the northeast, the Gulf of Tonkin to the south, Qinzhou to the west, and Pubei County to the north. It covers an area of 2,380 square kilometres and had a population of 930,914 as of 2003.
In November 1992, then-Premier Li Peng called Hepu "the Southern Pearl County" (南珠之乡).