The Missa Sancti Bernardi von Offida is a mass in B-flat major by Joseph Haydn, Hob.

XXII:10, Novello 1,[1] was written the same year as the Missa in tempore belli[2] (1796), and it "may have been the first mass Haydn wrote after his return from England.

This mass was written in honor of St. Bernard of Offida, a Capuchin who devoted himself to helping the poor; a century after the friar's death, he was beatified by Pope Pius VI.

[6] Scored for four soloists, choir, 2 oboes, clarinets (a later revision expanded their part[7]), 2 bassoons, 2 trumpets in B-flat,[7] timpani, strings and organ, the latter supplying figured bass for most of the duration.

[8] The Quoniam in Anton Bruckner's Missa Solemnis in B-flat minor quotes this mass.