William or Bill Bray may refer to:
Politicians William Bray (MP) (1682–1720), member of parliament for Monmouth Boroughs William M. Bray (1880–1964), Wisconsin State Senator M. William Bray (1889–1961), U.S. politician, Lieutenant Governor of New York 1933–1938 William G. Bray (1903–1979), U.S. politician, Representative for Indiana
Sports William Bray (cricketer) (1879–1960), New Zealand cricketer Bill Bray (rugby league) ( 1946–1948), Australian rugby league player Bill Bray (born 1983), American baseball pitcher
Others William Bray (priest) (fl. 1613–1644), English clergyman William Bray (antiquary) (1736–1832), English antiquary Billy Bray (1794–1868), Welsh Methodist evangelist William F. Bray (1877– 1960), Arizona architect, designer of Oddfellows Home (Safford, Arizona) William L. Bray (1865–1953), American botanist John Bray (communications engineer) (William John Bray, 1911–2004), British communications engine Bill Bray (bodyguard) (1925–2005), American bodyguard