| Tseng Ming-chung | |
| Honorific-Suffix: | MLY |
| Office1: | Minority Leader of the Legislative Yuan |
| Term Start1: | 10 February 2022 |
| Term End1: | 31 January 2024 |
| 1Blankname1: | Speaker |
| 1Namedata1: | Yu Shyi-kun |
| 2Blankname1: | Secretary General |
| Predecessor1: | Alex Fai |
| Successor1: | Ker Chien-ming |
| Office2: | Member of the Legislative Yuan |
| Term Start2: | 1 February 2016 |
| Term End2: | 31 January 2024 |
| Constituency2: | Party-list |
| Order3: | Acting |
| Office3: | Secretary-General of the Kuomintang |
| 1Blankname3: | Chairman |
| 1Namedata3: | Lin Rong-te Johnny Chiang |
| Term Start3: | 15 January 2020 |
| Term End3: | 18 March 2020 |
| Predecessor3: | Tseng Yung-chuan |
| Successor3: | Lee Chien-lung |
| Office4: | 7th Chairman of the Financial Supervisory Commission |
| Primeminister4: | Jiang Yi-huah Mao Chi-kuo |
| Deputy4: | Wang Li-ling, Huang Tien-mu |
| Term Start4: | 1 August 2013 |
| Term End4: | 31 January 2016 |
| Predecessor4: | Chen Yuh-chang |
| Successor4: | Wang Li-ling |
| Office5: | Political Deputy Minister of Finance |
| Minister5: | Chang Sheng-ford |
| Term Start5: | 2012 |
| Term End5: | July 2013 |
| Successor5: | Wu Tang-chieh |
| Office6: | Administrative Deputy Minister of Finance |
| Minister6: | Lee Sush-der Christina Liu |
| Term Start6: | 2008 |
| Term End6: | 2012 |
| Birth Date: | [1] |
| Nationality: | Taiwan |
| Alma Mater: | National Chung Hsing University National Taipei University |
Tseng Ming-chung or William Tseng (; born 22 January 1959) is a Taiwanese politician. He has served as Deputy Minister of Finance, chaired the Financial Supervisory Commission, and as an elected member of the Legislative Yuan.
Tseng obtained his doctoral degree in business administration from National Taipei University.[2]
As deputy minister of finance, Tseng commented on the amendment to raise the tax and health and welfare surcharge on tobacco in early May 2013. He stated that the move would result in a loss of NT$610 million in tax revenue but it will bring in an extra NT$25 billion in income used for health and welfare funds.[3]
He was named the Chairperson of the Financial Supervisory Commission of the Executive Yuan on 1 August 2013.[4]
Tseng was elected to the Legislative Yuan through the proportional representation ballot in 2016, as a member of the Kuomintang.[5] Prior to the election, he was an independent.[6]