Sylvester Laflin "Pat" Weaver, Jr. (December 21, 1908 – March 15, 2002) was an American radio advertising executive, who became president of NBC between 1953 and 1955. He has been well-known for his commercial broadcasting's format and philosophy as radio gave way to television as America's dominant home entertainment. He was married to Elizabeth Inglis from 1942 until his death in 2002, they had two children; a son Trajan Victor Charles and a daughter Sigourney Weaver.