This paper provides a literature review by fields of application of functional regions and functional areas. The application of functional regions, functional urban regions,
and functional urban areas is mostly found in labour market analyses and analyses of other socio-economic aspects, in analyses of administrative, planning, and statistical
regions, and in analyses of functional (urban) areas. This literature review is done separately for Slovenia and the rest of the world.
Key words: functional regions, functional urban regions, functional areas, functional urban areas, application fields, Slovenia