Robert Greenberg (born 1954) is an American composer, pianist, and musicologist.
Robert or Bob Greenberg may also refer to: Robert Greenberg (born 1940), Founder and CEO of Skechers Robert M. Greenberg of R/GA, see Academy Award for Best Visual Effects Bob Greenberg (1934–2009), American record executive Bob Greenberg (programmer), early Microsoft employee Bob Greenberg (writer), wrote Lobster Man from Mars