The Sparrow Mass is a mass in C major K. 220/196b, Mass No. 9, Missa brevis No. 5, composed by Wolfgang Amadeus Mozart in 1775 or 1776 in Salzburg. The mass is sometimes termed a missa brevis et solemnis, because it is short in a simple structure as a missa brevis, but festively scored like a missa solemnis with brass and timpani in addition to four soloists, strings and organ. It was possibly first performed on 7 April 1776 in a mass for Easter at the Salzburg Cathedral. The nickname is derived from violin figures in the Hosanna which resemble bird chirping.

The Köchel catalogue is a chronological catalogue of compositions by Wolfgang Amadeus Mozart, originally created by Ludwig Ritter von Köchel, in which the entries are abbreviated K. or KV. Its numbers reflect the ongoing task of compiling the chronology of Mozart's works, and provide a shorthand reference to the compositions.