In Nomine

Alternate meaning: In Nomine (role-playing game)

In Nomine was a title given to a number of English pieces of music in the 16th and 17th centuries based on the plainsong "Gloria tibi Trinitas" and on a section of John Taverner's mass itself based on that theme. In Nomines were polyphonic pieces written variously for consorts of viols, the lute or keyboard instruments.

Examples were composed by Christopher Tye, Thomas Tallis, William Byrd, Orlando Gibbons and Henry Purcell among others.