Bill Scanlon (born November 13, 1956 in Dallas, Texas) is a former tennis player from the United States, who won seven singles and two doubles titles during his 13 year professional career. The right-hander reached his career-high ATP singles ranking of World No. 9 in January 1984. He is also known for upsetting top-seeded John McEnroe (7–6, 7–6, 4–6, 6–3) in the fourth round at the 1983 US Open.