Kantonian
Kantonian is a rarely used English demonym and adjective historically applied to people or things associated with Canton, the southern Chinese port city now known as Guangzhou, or with the broader Cantonese-speaking region in Guangdong Province. The form derives from Canton, with variants such as Kanton, Cantão, or Canton in various languages; the suffix -ian is a common English way to form demonyms and adjectives.
In older English literature and some scholarly works, Kantonian can be found describing inhabitants of Canton
Geography and history: The Canton area centers on the Pearl River Delta, with Guangzhou as its historical
Notes on usage: Because Kantonian can be ambiguous, editors often avoid it in favor of Cantonese-related terms.
See also: Cantonese, Guangzhou, Guangdong, Pearl River Delta.