William Krohmer McElhiney (May 20, 1915 – February 9, 2002) was a musical arranger, trumpeter, band leader, and musical director who was based in Nashville, Tennessee. As a performer, his most notable contribution was the signature trumpet parts on Johnny Cash's "Ring of Fire". He was one of the most prominent musical arrangers in Nashville during the 1960s and 1970s, doing arrangements for Brenda Lee ("I'm Sorry"), Patsy Cline, Roy Orbison, Danny Davis, Marty Robbins, and Dolly Parton. He was honored as Best Arranger of the Year at the 1972 Billboard Country Music Awards. He also served as musical director at Nashville's WSM-AM radio.