Both "Hollywoodian" and its synonym "Hollywoodite" are recognized forms.
Gibraltarian is the demonym of Gibraltar.
The demonym for Philippines is Filipino.
The name for the people - demonym - of Afghanistan is Afghan.
The name for the people - demonym - of Albania is Albanian.
The demonym for Hemel Hempstead is "Hempsteadian."
The demonym may be Geelongian or Geelongite.
The demonym of Barcelona is "Barcelonian." This term refers to the people who are from or live in Barcelona, a vibrant city in Spain. Additionally, in Catalan, the demonym is "barceloní" for males and "barcelonina" for females.
Singaporean
Brazilian.
Belgian
Vancouverite...
Cuban