Peter Carl Goldmark (Hungarian: Goldmark Péter Károly) (December 2, 1906 – December 7, 1977) was a Jewish German-Hungarian engineer who, during his time with Columbia Records, was instrumental in developing the long-playing microgroove 33-1/3 rpm phonograph disc, the standard for incorporating multiple or lengthy recorded works on a single disc for two generations. The LP was introduced by Columbia's Goddard Lieberson in 1948.