Bagpipes are a class of musical instrument, aerophones, using enclosed reeds fed from a constant reservoir of air in the form of a bag. Though the Scottish Great Highland Bagpipe and Irish uilleann pipes have the greatest international visibility, bagpipes have been for centuries played throughout large parts of Europe, the Caucasus, around the Persian Gulf and in Northern Africa. The term "bagpipe" is equally correct in the singular or plural, although in the English language, pipers most commonly talk of "the pipes", "a set of pipes", or "a stand of pipes".

Bagpipe making was once a craft that produced instruments in many distinctive local traditional styles. Today, the world's biggest producer of the instrument is Pakistan, where the industry was worth $6.8 million in 2010.