My Fair Princess, also known as Return of the Pearl Princess or Princess Returning Pearl (Chinese: 還珠格格), is a 1998–1999 Chinese-Taiwanese period drama jointly produced by Yi Ren Communications Co. (怡人傳播公司) of Taiwan and Hunan Broadcasting System of China. Season 1 (1998) was filmed in 1997, and Season 2 (1999) in 1998–1999. Both seasons were filmed in Beijing, Chengde and the Bashang Plateau in China, and first aired on China Television in Taiwan.

Written by Chiung Yao, the story is set in 18th-century Qing dynasty during the Qianlong Emperor's reign. It follows tomboyish and innocent Xiaoyanzi, originally an orphaned and semi-literate vagrant in Beijing who, after befriending the emperor's illegitimate daughter Xia Ziwei, becomes a princess in place of her by accident. Although partially based on historical events and figures, the drama employed considerable artistic license.

Originally produced with a small budget and a cast of little-known young actors, My Fair Princess became a massive hit across East and Southeast Asia. It is regarded as one of the most commercially successful Chinese-language series in history. After reaching audience shares as high as 65%, Hunan Broadcasting System grew to become China’s second-largest network. Meanwhile, previously unknown cast members like Zhao Wei, Ruby Lin and Fan Bingbing became household names and overnight teen idols. In 2021, the series was blacklisted in mainland China following the government’s ban on Zhao Wei.