Sun Yat-sen University or Zhongshan University (Traditional Chinese: 中山大學; Simplified Chinese : 中山大学; pinyin: Zhōngshān Dàxué) is a prominent university in the southern part of China, located mainly in Guangzhou. The university is named after Dr. Sun Yat-Sen, a physician and later president of the Republic of China.

The university consists of 4 campuses (South Campus, North Campus, East Campus and Zhuhai Campus) with a total area of 6.17 square kilometers. Three of the four campuses are located in Guangzhou, the fourth is in Zhuhai.

The university motto, "Study extensively; Enquire accurately; Reflect carefully; Discriminate clearly; Practise earnestly" (博学、审问、慎思、明辨、笃行), is from one of the Chinese classics, Doctrine of the Mean.