Shi Nai'an (Chinese: 施耐庵; pinyin: Shī Nài'ān, ca. 1296–1372), was a Chinese writer from Suzhou. He was attributed as the first compiler of the Water Margin, one of the Four Great Classical Novels of Chinese literature.
Library of Congress Authorities: Shi, Nai’an, approximately 1290-approximately 1365

Not much biographical information is known about him. Traditionally it was believed that he was a teacher of Luo Guanzhong, who was attributed as a main compiler of Romance of Three Kingdoms, another of the Four Great Classical Novels. Some modern scholars doubt that Shi actually existed, but was merely a pseudonym for Luo himself.