Some instruments are referred to as folk instruments even if they do not meet the criteria for classifying a folk instrument because they commonly appear in folk music. An example would be harmonica.

List of folk instruments

• autoharp
• bagpipe
• banjo
• bouzouki
• cavaquinho
• çiftelia
• doyra
• harmonica
• hammer dulcimer
• jew's harp
• kantele
• klopotec
• mandolin
• musical saw
• quena
• salamiyyah
• shofar
• tin whistle
• ukulele
• violin
• washboard
• willow flute
• zither

Ethnology | Folk instruments | Folk music