My Fair Princess, also known as Return of the Pearl Princess or Princess Returning Pearl (Chinese: 還珠格格), is a Chinese-language period drama jointly produced by Yi Ren Communications Co. (怡人傳播公司) of Taiwan and Hunan Economic Television (湖南經濟電視台) (now under Hunan Broadcasting System (HBS)) 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. Season 3 (2003) was filmed with a largely different cast, receiving mixed reviews and less popularity.

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, 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 employs considerable artistic license.

Originally produced on a small budget with a cast of little-known young actors, My Fair Princess became one of the most successful and frequently replayed Chinese shows, launching the careers of Zhao Wei, Ruby Lin and Fan Bingbing. The show went off the air in China from 2015 to 2017 after Chiung Yao severed ties with HBS and revoked its copyright due to her dispute with Yu Zheng over his plagiarism of her work in another HBS show. Chiung Yao reconciled with HBS and regranted the copyright in 2018. Since 2021, the first two seasons of the show have been blacklisted in China following Fan Bingbing’s tax scandal and then the government’s ban on Zhao Wei.