| Missa in angustiis | |
|---|---|
| Nelson Mass | |
| Missa solemnis by Joseph Haydn | |
 Lord Nelson, for whom the mass is nicknamed | |
| Catalogue | Hob. XXII/11 |
| Language | Latin |
| Performed | 23 September 1798: Eisenstadt |
| Movements | 6 |
| Vocal | SATB choir and soloists |
| Instrumental | orchestra |
The Missa in angustiis (Mass for troubled times), commonly known as the Nelson Mass (Hob. XXII/11), is a Mass setting by the Austrian composer Joseph Haydn. It is one of the six masses written near the end of his life that are seen as a culmination of Haydn's composition of liturgical music.