Su Chih-fen (Chinese: 蘇治芬; pinyin: Sū Zhìfēn; born 10 July 1953) is a Taiwanese politician.

[1] Su was elected as the Magistrate of Yunlin County after winning the 2005 Republic of China local election under Democratic Progressive Party on 3 December 2005 and assumed office on 20 December 2005.

During her term as the Yunlin County Commissioner, Su was arrested on 3 November 2008 on the charge of accepting bribes to the worth NT$5 million, equivalent to US$174,845.00, in a landfill approval case and was under prosecution for a 15-year jail sentence.

Known for her great integrity, the news of her arrest triggered off a widespread public outrage.

[2][3] Commenting on the Cross-Strait Service Trade Agreement signed between Straits Exchange Foundation (SEF) and Association for Relations Across the Taiwan Straits (ARATS) in Shanghai on 21 June 2013, Su said that she refused to recognize the agreement and implement it in Yunlin County.