Naji Subhy Paul Irénée HAKIM was born in Beirut , 31 October, 1955. He studied with Jean Langlais (organ), Evelyne Aïello (conducting), and at the Conservatoire National Supérieur de Musique de Paris - classes of Roger Boutry (harmony), Jean-Claude Henry (counterpoint), Marcel Bitsch (fugue), Rolande Falcinelli (organ), Jacques Castérède (analysis) and  Serge Nigg (orchestration), where he was awarded seven first prizes. He is a licentiate teacher in organ from Trinity College of Music in London and won ten first prizes at international organ and composition competitions. In 1991 he was awarded the Prix André Caplet from the Académie des Beaux-Arts and in 2009 the Premier Prix du Concours de Musique Sacrée de la Cathédrale de Monaco. At first organist of the Basilique du Sacré-Coeur, Paris from 1985 until 1993, he then became organist of l'église de la Trinité, in succession to Olivier Messiaen (1993-2008). He was professor of musical analysis at the Conservatoire National de Région de Boulogne-Billancourt (1988-2019). He is visiting professor at the Royal Academy of Music, London, graduate of the École Nationale Supérieure des Télécommunications in Paris, member of the Consociatio Internationalis Musicae Sacrae in Rome and Doctor honoris causa of the Pontifical University Saint-Esprit of Kaslik, Lebanon. In 2007, His Holiness Pope Benedict XVI awarded Naji Hakim The Augustae crucis insigne pro Ecclesia et Pontifice, for his excellent commitment and work for the benefit of the Church and the Holy Father. His works include instrumental music (organ, flute, bassoon, horn, trumpet, harp, guitar, violin, viola, cello, piano), symphonic music (Les Noces de l'Agneau, Hymne de l'Univers, Ouverture Libanaise, Påskeblomst, Augsburger Symphonie, five organ concertos, a violin concerto, a piano concerto), and vocal music (oratorio Saul de Tarse, cantata Phèdre, Magnificat and four masses).

Naji Hakim is married to Marie-Bernadette Dufourcet, organist, composer and musicologist. They have two children: Katia-Sofía, poet, pianist and musicologist, and Jean-Paul, lawyer, pianist and composer.