Billy Parker may refer to:

• Billy Parker (gridiron football) (born 1981), Arena Football League & Canadian Football League defensive specialist
• Billy Parker (baseball) (1942–2003), American professional baseball infielder
• Billy Parker (singer) (1937–2026), American DJ and country music singer
• Billy Parker (racing driver) (born 1977), NASCAR Busch Series driver

• Bill Parker (disambiguation)
• William Parker (disambiguation)