Zong is the pinyin romanization of the Chinese surname written 宗. The Wade-Giles transliteration is Tsung.
Zong is also a Cantonese-derived spelling for the surname Zhuang (庄/莊).
According to a 2013 study it was the 217th most common surname, shared by 450,000 people or 0.034% of the population, with Jiangsu being the province with the most people.
People with the surname Zong Ai (宗愛) (died 452), Northern Wei eunuch Zong Bing (宗炳) (375–444), Chinese artist and musician Zong Chen (宗臣) (1525–1560), Ming dynasty scholar-official Zong Chuke (宗楚客) (d. 710), Tang dynasty chancellor Zong Lei (宗磊) (b. 1981), Chinese footballer Zong Pu (宗璞) (b. 1928), Chinese writer and scholar Zong Qinghou (宗庆后) (1945–2024), Chinese entrepreneur Zong Qinke (宗秦客) (d. 691), Tang dynasty official Zong Xiangqing (宗祥慶) (b. 1960), Chinese Olympic fencer Zong Yu (宗預) (d. 263), Three Kingdoms general Connie Chung (宗毓華 Zōng Yùhuá), American news anchor and journalist Zong Zoua Her, ethnic Hmong leader Zong Xiao Chen (宗笑尘) (born 1998), Chinese professional darts player