Johann Gottlieb Goldberg (before because baptized 14 March 1727 – 13 April 1756), also known as Johann Gollberg or Johann Goltberg, was a German virtuoso harpsichordist, organist, and composer of the late Baroque and early Classical period. He is best known for lending his name, as the probable original performer, to the renowned Goldberg Variations of J.S. Bach.