Cheng Wen-tsan (Chinese: 鄭文燦; pinyin: Zhèng Wéncàn; Wade–Giles: Chêng4 Wên2-tsʻan4; born 6 July 1967) is a Taiwanese politician who has served as the vice premier of the Republic of China (Taiwan) from 2023 to 2024 and chairman of the Straits Exchange Foundation briefly in 2024.

Born in present-day Bade District, Taoyuan City, Cheng grew up with 6 siblings and took an after-school job in neighboring Yingge.

[12] In April 2017, Cheng's rib was fractured after he was attacked by protesters outside Legislative Yuan who opposed a pension system reform bill.

[15] In October 2022, New Party city council candidate publicly alleged that Cheng had committed plagiarism or hired a ghostwriter to write his master's thesis at NTU.

[3][16] Cheng was elected to chair the Chinese Taipei Football Association in October 2022, following the resignation of Chiou I-jen in August of that year.