Pachelbel's Canon is the name commonly given to a canon by the German Baroque composer Johann Pachelbel in his Canon and Gigue for 3 violins and basso continuo (German: Kanon und Gigue für 3 Violinen mit Generalbaß) (PWC 37, T. 337, PC 358), sometimes referred to as Canon and Gigue in D or simply Canon in D. Neither the date nor the circumstances of its composition are known (suggested dates range from 1680 to 1706), and the oldest surviving manuscript copy of the piece dates from the 19th century.
Pachelbel's Canon, like Pachelbel's other works, although popular during his lifetime, soon went out of style, and remained in obscurity for centuries thereafter. A 1968 arrangement and recording of it by the Jean-François Paillard chamber orchestra became unexpectedly popular over the next decade, and in the 1970s the piece began to be recorded by many ensembles; by the early 1980s its presence as background music was deemed inescapable. From the 1970s to the early 2000s, elements of the piece, especially its chord progression, were used in a variety of pop music songs. Since the 1980s, it has also been used frequently in weddings and funeral ceremonies in the Western world.
The canon was originally scored for three violins and basso continuo and paired with a gigue. Both movements are in the key of D major. Although a true canon at the unison in three parts, it also has elements of a chaconne.
In his lifetime, Johann Pachelbel was renowned for his organ and other keyboard music, whereas today he is also recognized as an important composer of church and chamber music. Little of his chamber music survives, however. Only Musikalische Ergötzung—a collection of partitas published during Pachelbel's lifetime—is known, apart from a few isolated pieces in manuscripts. The Canon and Gigue in D major is one such piece. A single 19th-century manuscript copy of them survives, Mus.MS 16481/8 in the Berlin State Library. It contains two more chamber suites. Another copy, previously in Hochschule der Künste in Berlin, is now lost.