Niall Morris (born 1975) is an Irish classical singer and producer.
Born in Dublin, he studied music at Trinity College Dublin and the Guildhall School of Music and Drama, London. He completed his studies at the National Opera Studio in London.
He performed principally with English Touring Opera and the D'Oyly Carte Opera Company. Amongst the opera roles he has performed on stage are Nemorino in L'elisir d'amore, Davey in Jonathan Dove's Siren Song, Ralph Rackstraw in H.M.S. Pinafore, Don Ottavio in Don Giovanni, Lysander in A Midsummer Night's Dream, Fenton in The Merry Wives of Windsor, Paris in La Belle Hélène, and Antonio in The Duenna. He created the tenor roles in Thomas Adès first opera Powder Her Face, which was released on EMI Classics and nominated for a Grammy (Best Opera Recording 2000).
Morris was a founding member of the Irish singing group "The Celtic Tenors" who won the German "Echo Award" for Best Classical Crossover Artists in 2002. The group and made numerous recordings, notably at Abbey Road studios while signed to EMI Classics. Morris decided to leave the group in 2006, partly due to creative differences, and since then has worked as company manager for Opera Ireland as well as creating a biographical stage show about the life of opera legend Maria Callas which played for eleven nights at the National Concert Hall, Dublin.