As a Chinese surname, Thong may be a spelling, based on the pronunciation in different varieties of Chinese, of the following surnames, listed by their spelling in Pinyin (which reflects the Mandarin Chinese pronunciation):[1] Thong is also a Cambodian surname (Khmer: ថោង; IPA: /t̪ʰoːŋ/), probably derived from one or more of the above Chinese surnames.
[1] According to statistics cited by Patrick Hanks, 106 people on the island of Great Britain and none on the island of Ireland bore the surname Thong as of 2011.
[1] The 2010 United States Census found 1,378 people with the surname Thong, making it the 19,581st-most-common name in the country.
In both censuses, about nine-tenths of the bearers of the surname identified as Asian, and less than 3% each as White or Black.
[2] It was the 899th-most-common surname among respondents to the 2000 Census who identified as Asian.