Marc or MARC may refer to:

Greenberg is a surname common in North America, with anglicized spelling of the German Grünberg (green mountain) or the Jewish Ashkenazi Yiddish Grinberg, an artificial surname.

Notable people with the surname Greenberg include:

Marc Darrow M.D. is a Board Certified Physiatrist, professor and author specializing in Physical Medicine and Rehabilitation. Dr. Darrow is an acting Assistant Clinical Professor at the University of California at Los Angeles School of Medicine where he emphasizes a treatment known as prolotherapy.

Dr. Darrow attended Northwestern University where he received a Bachelor of Arts degree in Psychology followed by degree in Medicine from the University of Hawaii. In addition, Darrow holds a Doctorate in Jurisprudence from Golden Gate University as well as an MBA from the University of California.

Darrow’s work and commitment to Prolotherapy has led to four published books, ‘’The Knee Sourcebook’’, ‘’The Collagen Revolution: Living Pain Free’’, ‘’The Hollywood Pain Solution and Prolotherapy: Living Pain Free’’, a radio show and regular contributions to popular blogs such as the Huffington Post. In 2007, Newsweek Magazine featured Darrow in an article about chronic pain and its effect on U.S. veterans.

Guy Gerber (born in 1975 in Holon,near Tel Aviv) is an electronic DJ/producer and musician who specializes in making music with synthesizers and live instrumentation in the techno scene and beyond. Gerber regularly DJs across the globe at events in Detroit, Berlin, Ibiza and the UK.

At the age of 15, Gerber was a member of the Israeli Under-16 national football team but soon developed the passion for music and found himself drawn to English guitar acts like Joy Division and My Bloody Valentine. Consequently, his harmonic, shoe-gaze inspired sound was a style that saw Gerber record for various European electronic labels including ‘Stoppage Time’ for John Digweed’s Bedrock imprint.

Gerber’s first full length album ‘Late Bloomers’ was released on Sven Väth’s Cocoon imprint in June 2007 and featured two worldwide club hits in ‘Belly Dancing’ and ‘Sea Of Sand’ which he recorded with his Israeli production friend Shlomi Aber. In addition to his productions, Guy also found time to remix New Order and Dominik Eulberg as well as setting up his own label Supplement Facts. More recently, he’s remixed ‘The L Word’ by Deniz Kurtel and ‘Hungry For The Power’ by Azari & III.