William Eddy

William Eddy may refer to:


 * William Eddy (politician) (1865–1926), Australian politician
 * William A. Eddy (1896–1962), U.S. minister to Saudi Arabia
 * William Abner Eddy (1850–1909), American accountant and journalist
 * William C. Eddy (1902–1989), American inventor
 * William F. Eddy (1852–?), Canadian businessman, Mayor of Regina