William, Willie, Bill or Billy Miles may refer to:

• William Miles (Queensland politician) (1817–1887), Australian politician
• Sir William Miles, 1st Baronet (1797–1878), English politician and agriculturalist
• William Porcher Miles (1822–1899), American politician

• William Augustus Miles (1750s–1817), English political writer
• William Ernest Miles (1869–1947), English surgeon
• William H. Miles (1828–1892), American bishop
• William John Miles (1871–1942), Australian businessman and political activist
• Willie Miles, American baseball player
• Bill Miles (1931–2013), American filmmaker
• Billy Miles (fighter), a team member in the TV series The Ultimate Fighter: Team Hughes vs. Team Serra
• Billy Miles (The X-Files), a minor character in several episodes of The X-Files

• Miles (surname)