Joanna Marsh is a British composer of choral and orchestral works, who has lived in Dubai since 2007. She studied composition with Richard Blackford and Judith Bingham, studying at the Royal Academy of Music and also as an organ scholar at Sidney Sussex College, Cambridge. She is now the current Composer in Residence at Sidney Sussex College.
She is the wife of the British businessman and musician, Paul Griffiths, with whom she has 3 children. They commissioned the French organ builder Bernard Aubertin to install a three-manual, 30-stop pipe organ in their home in East Sussex; it is the largest classical pipe organ in a private home in the UK.