Francis John Roy Grier is an English choral and vocal classical composer and psychoanalyst.

He was a chorister at St George’s Chapel, Windsor Castle, music scholar at Eton College, and organ scholar at King’s College, Cambridge, then Assistant Organist and then Organist (1981-5) of Christ Church Cathedral, Oxford. He made many recordings and broadcasts as organist and choir director, including playing La Nativit’e du Seigneur by Olivier Messiaen at the first ever Prom concert given over to a solo performer.

As chamber music pianist he has been playing with the soprano Dorothee Jansen in the Jansen-Grier-Duo since their inaugural recital in summer 2000.

As a composer he has written much for the Anglican choral tradition and several large-scale works.