Ji Yun (Chinese: ??; pinyin: Ji Yún; 1724–1805), also known as Ji Xiaolan (Chinese: ???; pinyin: Ji Xiaolán) or Ji Chunfan (Chinese: ???; pinyin: Ji Chunfan) was a Chinese philosopher, politician, and writer.
He was an influential scholar of Qing dynasty China and many anecdotes have been recorded about him.
Ji Yun left behind a book entitled Notes of the Thatched Abode of Close Observations, and another book named Wenda Gong Yiji (Collected Works of Lord Wenda, i.e.
Ji Xiaolan), which was edited by later generations.
He was often mentioned with Yuan Mei as the "Nan Yuan Bei Ji" (Chinese: ????; literally: 'Yuan of the south and Ji of the north').