Linguistic and ethnic regions in Belgium are best characterized as perceptual regions.
Perceptual regions are areas defined by the people's attitudes and feelings about those areas, which in Belgium are strongly influenced by linguistic and cultural identities, such as the distinctions between Flemish speakers in the north (Flanders) and French speakers in the south (Wallonia). These perceptions can shape regional identities and attitudes, making them more subjective compared to formal or functional regions.