Huang Hong-cheng (Chinese: 黃宏成; pinyin: Huáng Hóngchéng) is a Taiwanese performance artist, a social activist and a perennial candidate in Taiwanese elections.

Born Huang Hong-cheng (黃宏成), he has been well-known for renaming himself multiple times.

He is currently known as 黃宏成台灣阿成世界偉人財神總統 (pinyin: Huáng Hóngchéng Táiwān Ā Chéng Shìjiè Wěirén Cáishén Zǒngtǒng, lit.

'Huang Hong-cheng, Ah Cheng from Taiwan, World’s Greatest Man, God of Wealth, and President').

He once had the longest name in Taiwan,[2][3] but the record was broken by a YouTuber, who changed his name in June 2020.