Yen Kuan-heng (Chinese: 顏寬恆; pinyin: Yán Kuānhéng; born 14 September 1977) is a Taiwanese politician. He was elected to the Legislative Yuan from Taichung in 2013, to replace his father Yen Ching-piao in office. Yen lost reelection to Chen Po-wei in 2020, and returned to office in 2024.

Yen Kuan-heng helped run his father's first legislative campaign in 2001,^[1] and worked as the elder Yen's legislative assistant.^[2] Yen Ching-piao was sentenced to prison in November 2012 and expelled from the Legislative Yuan, necessitating a by-election for Taichung 2.^[3][4] Chen Shih-kai [zh] was named the Democratic Progressive Party candidate days before the Kuomintang announced its support of Yen Kuan-heng.^[5][6] The by-election was held on 26 January 2013, with Yen winning by 1,138 votes.^[7][8] The Kuomintang nominated Yen for a second term over fellow party member Chi Kuo-tung [zh] in the 2016 legislative elections, and Yen won again.^[9] In March 2016, Yen joined the Parliamentary Transparency Alliance, a smaller group of Kuomintang legislators within the Ninth Legislative Yuan.^[10] Yen narrowly lost reelection to Taiwan Statebuilding Party candidate Chen Po-wei in 2020.^[11] Following a successful bid to recall Chen from office [zh] in October 2021, a by-election was scheduled for 9 January 2022.^[12] The Kuomintang formally nominated Yen as its candidate for the by-election on 9 November 2021.^[13] French-born Taiwanese director Jean-Robert Thomann filmed the documentary Taiwan, Chronicle of a Threatened Democracy, about the by-election, which Yen lost to Lin Ching-yi.^[14] Yen unseated Lin in the 2024 legislative election.^[15]