| Election Name: | 2007 Kuomintang chairmanship by-election |
| Flag Image: | Naval Jack of the Republic of China.svg |
| Type: | by-election |
| Ongoing: | no |
| Previous Election: | 2005 Kuomintang chairmanship election |
| Previous Year: | 2005 |
| Next Election: | 2009 Kuomintang chairmanship election |
| Next Year: | 2009 |
| Election Date: | 7 April 2007 |
| Turnout: | 53.75% |
| Image1: | Wuboxiong-voa (cropped).jpg |
| Nominee1: | Wu Po-hsiung |
| Color1: | 008EDB |
| Popular Vote1: | 156,499 |
| Percentage1: | 86.97% |
| Nominee2: | Hung Hsiu-chu |
| Color2: | D42187 |
| Popular Vote2: | 23,447 |
| Percentage2: | 13.03% |
| Chairman | |
| Posttitle: | Elected Chairman |
| Before Election: | Chiang Pin-kung (acting) |
| After Election: | Wu Po-hsiung |
The 2007 Kuomintang chairmanship by-election was held on 7 April 2007 in Taiwan between Wu Po-hsiung and Hung Hsiu-chu. This was the third direct election of the chairman in the Kuomintang history. All registered, due-paying KMT party members were eligible to vote. The previous leadership election had occurred in 2005.
The election was triggered by the resignation of chairman Ma Ying-jeou after he was indicted for allegedly misusing funds while Mayor of Taipei.[1] The Taiwan High Court eventually cleared Ma of all corruption charges.[2] [3] The election, held on 7 April, was won by Wu Poh-hsiung.[4]