William Hayward

William Hayward may refer to:


 * William Hayward (politician) (1868–1943), member of the New Zealand Legislative Council, 1934–1941
 * William Hayward Jr. (1787–1836), U.S. politician
 * William Hayward Pickering (1910–2004), New Zealand rocket scientist
 * William Dutton Hayward (1815–1891), founder and namesake of the city of Hayward, California
 * William C. Hayward (1847–1917), American politician
 * William Henry Hayward (1867–1932), English-born farmer and political figure in British Columbia
 * Bill Hayward (1868–1947), track and field coach
 * Bill Hayward (rugby union), rugby player
 * Bill Hayward (educator) (born 1930), Australian educator and cricketer
 * Sir Bill Hayward (Edward Hayward 1903–1983), South Australian store owner, art collector
 * William Hayward (bridge designer), 18th-century bridge designer as per Henley Bridge
 * William S. Hayward (1835–1900), baker, banker and mayor of Providence, Rhode Island
 * William Thornborough Hayward (1854–1928), medical doctor in South Australia
 * Bill Hayward (educator) (born 1930), Australian educator and cricketer
 * William Hayward (New Zealand cricketer) (1909–1982), New Zealand cricketer
 * William Hayward (architect) (died 1823), architect who worked in Lincoln, England
 * William Hayward (American attorney), American lawyer commanded the 369th Infantry Regiment