Hong is the pinyin romanization of the Chinese surname 洪 (Hóng). It was listed 184th among the Song-era Hundred Family Surnames. Today it is not among the 100 most common surnames in mainland China but it was the 15th-most-common surname in Taiwan in 2005. As counted by a Chinese census, Taiwan is the area with the largest number of people with the name. It is also the pinyin romanization of a number of less-common names including Hóng, Hóng, and Hóng. All of those names are romanized as Hung in Wade-Giles.