Mass No. 6

Mass No. 6 may refer to:


 * Mass No. 6 (Haydn), Missa Sancti Nicolai in G major, by Joseph Haydn
 * Mass No. 6 (Mozart), in honorem Sanctissimae Trinitatis in C major, by Wolfgang Amadeus Mozart
 * Mass No. 6 (Schubert), in E-flat major, by Franz Schubert