In Nomine

This article is about the musical genre originating in 16th-century England. For the role-playing game, see In Nomine (role-playing game). For the Europa Universalis 3 expansion, see Europa Universalis III: In Nomine.
Opening of the "in nomine" passage from Taverner's Gloria Tibi Trinitas Mass

In Nomine is a title given to a large number of pieces of English polyphonic, predominantly instrumental music, first composed during the 16th century.