Chung is a surname whose bearers are generally people of Chinese or Korean descent. It is also a Vietnamese surname worn by people of Chinese descent but is very rare in Vietnam; the surname is known as Zhong (trad/simp: 鍾/锺) in Mandarin Chinese, Jong (鍾/종), Jong (宗/종), and Jung (鄭/정) in Korean, and Chung in Vietnam, Taiwan and Hong Kong.
- Chung or Zhong (surname), is a transliteration of several Chinese surnames, including Zhōng (鍾/锺 or 钟), Zhòng (种, mistakenly for Chóng, cf. zh:种姓) and Zhòng (仲), etc.. These are transliterated as Chung (especially in Taiwan, Hong Kong and Malaysia). Sometimes it is transliterated as Cheong or Choong in Malaysia.
- Chung or Cheung, a Cantonese romanization of several Chinese surnames, including 張/张 (Jyutping: Zoeng1; Pinyin: Zhāng; Wade–Giles: Chang), and 章. Sometimes, 蔣 (蒋) is also spelled as Cheung instead of Chiang/Jiang due to its Cantonese pronunciation.
- Jeong (Korean surname), a Latin alphabet rendition of the Korean family name "정" (hanja: 鄭, 丁, 程), sometimes also spelled as Chung, Jung, or Jong.
Notable people with the surname include: