The term "Hjartdøla" (plural "Hjartdøler") is a demonym referring to a person from Hjartdal, a municipality located in Telemark county, Norway.
Beyond its primary use as a demonym, "Hjartdøla" also carries significant cultural connotations, particularly within the context of Norwegian folk music and dance. It is often used to describe or identify specific traditional tunes (slåtter) or dance forms that originate from or are characteristic of the Hjartdal region. This includes various types of springar and gangar dances and their accompanying melodies, which are distinct in their rhythm, structure, and ornamentation, reflecting the unique musical heritage of Telemark. Musicians and dancers specializing in these traditions often use "Hjartdøla" to denote adherence to the local style and repertoire.