Ching Shih (1775–1844)[1] (simplified Chinese: 郑氏; traditional Chinese: 鄭氏; pinyin: Zh\xe8ng Sh\xec; Cantonese: Jihng Sih; "widow of Zheng"), also known as Cheng I Sao (simplified Chinese: 郑一嫂; traditional Chinese: 鄭一嫂; pinyin: Zh\xe8ng Yī Sǎo; Cantonese: Jihng Yāt S\xf3u; "wife of Zheng Yi"), was a prominent pirate in middle Qing China, who terrorized the China Sea in the early 19th century. She commanded over 300 junks manned by 20,000 to 40,000 pirates. Another estimate has Cheng's fleet at 1800 and crew at about 80,000 — men, women, and even children. She challenged the empires of the time, such as the British, Portuguese and the Qing dynasty. Undefeated, she would become one of China and Asia's strongest pirates, and one of world history's most powerful pirates.

She was also one of the few pirate captains to retire from piracy.