Edward Latimer Beach Sr. (June 30, 1867 – December 20, 1943) was a United States Navy officer and author. He served in three of the United States' wars, ranging from the Spanish–American War up through World War I. He was the father of the future Captain Edward L. Beach Jr. who commanded the nuclear-powered submarine USS Triton during her 1960 submerged circumnavigation and wrote the 1955 best-selling novel Run Silent, Run Deep.