Tsai Chi-chang (Chinese: 蔡其昌; pinyin: Cài Qíchāng; born 16 April 1969) is a Taiwanese politician. He was elected to the Legislative Yuan in Taichung's first constituency in 2012 and re-elected in 2016. He is currently the Deputy Speaker of Legislative Yuan, having served in this role since 1 February 2016. An agreement for him to become Commissioner of Taiwan's Chinese Professional Baseball League (CPBL) was reached in December 2020 as the previous Commissioner's term was ending, and he was formally elected to the post on 19 January 2021, succeeding John Wu.