The birch trumpet is a type of natural trumpet made of spruce covered with birch bark, known in Norway, Sweden, Finland, England, Denmark, Latvia, Lithuania, Belarus and Estonia. Even cruder and less durable versions were made of plain birch bark. They are associated with the early European Chalet culture, where it was presumably used to intimidate predators, frighten supernatural enemies, and convene council meetings.

A natural trumpet is a valveless brass instrument that is able to play the notes of the harmonic series.