Bad Bonn Kilbi is an annual, three-day open air music festival in Düdingen, Switzerland since 1991.
The festival has a focus on alternative rock music; primarily those related to experimental rock, noise rock and other avant-garde genres.
The festival takes place in the last week of May and often has a line up which overlaps with the Primavera Sound festival, (Barcelona) and Villette Sonique festival, (Paris) that also take place on the same weekend.