Aris Christofellis (Greek: Άρης Χριστοφέλλης) (born 5 February 1960) is a Greek sopranist (male soprano) and musicologist. Aris Christofellis was born in Athens. After studying piano in Athens and Paris with instructors including Francis Clidat, he decided to concentrate on developing his singing voice, studying with Fofi Sarandopoulo. He made his debut in Bordeaux in 1984. In 1985 he sang Wolfgang Amadeus Mozart's "Exultate, jubilate" at Cannes Midem Classique inauguration concert, where he was received enthusiastically by both the public and the critics. His repertoire extends from Renaissance to contemporary music, but he focuses on the Italian baroque opera of the 18th century. As a musicologist, he has brought to light many works of this period and has dealt in particular with the ornamentation of the vocal music of the 18th and 19th centuries. In addition to lieder and folk songs, he concentrates mainly on Baroque opera and is known for singing roles written for castrati. He maintains an extensive discography.