folklore, the body of verbal expressive culture among a particular population, comprising the oral tradition of that group

folk art, art by traditionally trained, as opposed to academically trained, artists

folk rock, a genre, combining elements of folk music and rock music

folk metal, a sub-genre of heavy metal that incorporates elements of folk music

folk dance, a 19th century form of dance

folk-punk, a genre of music that combines elements of folk and punk rock music

Folk Nation, a umbrella group of American street gangs

a specific people, tribe, or nation, especially one of the Germanic peoples (see Folk)

folk music or folksong, music by and of the common people.

neofolk, a relatively new form of folk music, influenced by traditional folk and more modern, industrial music.

folktronica, electronic folk, related with IDM. A folky feel is combined with beats and samples.

Folkish is a name that has been given to a hypothetical substrate language believed by some to have influenced the Germanic languages: see Germanic substrate hypothesis;