Wu Den-yih (acting) Eric Chu The 2015 Kuomintang chairmanship by-election (Chinese: 2015年中國國民黨主席補選) was held on 17 January 2015 in Taiwan.

All registered, due-paying KMT party members were eligible to vote.

The election was called after Ma Ying-jeou resigned from the Kuomintang chairmanship to take responsibility for the party's heavy losses during the local elections held on 29 November 2014.

[1] Six KMT members, among them Clara Chou and Lee Hsin, attempted to register for the election, but five were rejected.

[2][3] Eric Chu, who had just been reelected Mayor of New Taipei in the November elections,[3] was the only officially confirmed candidate.