Michael Cretu, also known as Curly M.C. (born May 18, 1957, in a suburb of Bucharest, Romania), is a Romanian musician best known as the creator of the Enigma project. His original name, Creţu, means "the curly-haired."

He has worked with many producers, musicians, and artists in his long career. These include Sandra Cretu, Frank Farian, Boney M, Goombay Dance Band, Peter Cornelius, Manfred "Tissy" Thiers and Mike Oldfield in his pre-Enigma days, and Jens Gad, Frank Peterson, David Fairstein, ATB, Jam & Spoon, Peter Ries, Ruth-Ann Boyle and Andru Donalds during the course of the project.

In 2001, Crocodile-Music, Cretu's management stated that a total of 100 million Cretu-produced records had been sold. By the year 2007, Michael Cretu's Enigma project had sold over 40 million studio albums according to the official Enigma MySpace page.

He owns a recording studio, the A.R.T. Studios, situated within a private home of Michael and Sandra Cretu, on the island of Ibiza.