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