Berkeley Lloyd Bunker (August 12, 1906 - January 21, 1999) was a United States Senator and Representative from Nevada. Born in what was then St. Thomas, Clark County, Nevada, he attended public schools before entering the tire and oil business in Las Vegas in 1934. He was a member of the Nevada Assembly from 1936 to 1941, serving as speaker in 1939. On November 27, 1940 he was appointed as a Democrat to the U.S. Senate to fill the vacancy caused by the death of Key Pittman for the term ending January 3, 1941, and also for the term ending January 3, 1947, and served from November 27, 1940 until December 6, 1942 when a duly elected successor qualified. He was an unsuccessful candidate for the vacancy in 1942, and engaged in the life-insurance business in Las Vegas.
Bunker was elected as a Democrat to the Seventy-ninth Congress (January 3, 1945 - January 3, 1947), and was not a candidate for renomination in 1946. He was an unsuccessful Democratic candidate for election to the U.S. Senate in 1946, being defeated by George Malone, and was an investment broker and president of a management and equity company. He resided in Las Vegas until 1999 when he died and was interred in Bunkers Eden Vale Cemetery.