Su Nan-cheng (Chinese: 蘇南成; pinyin: Sū Nánchéng; 14 January 1936 – 2 September 2014) was a Taiwanese politician and Senior Advisor to ROC President Chen Shui-bian.

Su was in the Kuomintang and was part of the faction that supported the Taiwanese localization movement.

[2] In 2003, Su openly supported DPP candidate Chen Shui-bian in the 2004 presidential election.

During his term as Tainan mayor, he was recognized by the Ramon Magsaysay Award.

[4] He ran unsuccessfully for mayor of Tainan in 2001 as an independent candidate, and was elected a city council member instead.