Chen Shui-bian ( , born October 12, 1950) is a Taiwanese politician who has been the President of the Republic of China since May 20, 2000. He is colloquially referred to as Ah-Bian (阿扁; Ābiǎn; Taiwanese: 阿扁仔 A-píⁿ-à).

Chen, whose Democratic Progressive Party (DPP) has traditionally been supportive of Taiwan independence, took office in 2000, ending more than fifty years of Kuomintang (KMT) rule in Taiwan. Though he moderated his stance and took conciliatory gestures, Chen remains a highly divisive figure for his position on Taiwan independence.

After narrowly winning the Republic of China presidential election, 2004, Chen's second-term was marred by scandals. On November 3, 2006, his wife and three other high-ranking officials under the Presidential Office were charged with corruption for embezzling NTD14.8 million (~USD $460,000) of government funds using forged documents.

In January 2008, he resigned as chairman of the DPP, accepting responsibility for the party's defeat in the legislative elections.

Chen Shui-bian is an Honorary Member of The International Raoul Wallenberg Foundation