William Norris or Norreys may refer to:

Law and politics

  • William Norris (1501–68) (1501–1568), English politician, Member of Parliament for Liverpool
  • William Norreys (Berkshire MP) (c. 1548–1579), English politician and soldier; Member of Parliament for Berkshire
  • Sir William Norris, 1st Baronet (c. 1658–1702), English politician, Member of Parliament for Liverpool
  • Sir William Norris (judge) (1795–1859), English jurist, Chief Justice of British Ceylon, father of William Edward Norris
  • William Albert Norris (1927–2017), American jurist, judge for the United States Court of Appeals for the Ninth Circuit
  • William Norris III (1936–2016), American judge

<!--* William Norreys (gentleman usher), Gentleman Usher of the Black Rod and Order of the Garter; Member of Parliament for Windsor--> <!--red link-->

Military

  • William Norreys (c.1441–1507), English Lancastrian soldier during the War of the Roses
  • William Hutchinson Norris (1800–1893), American military officer and politician who founded the city of Americana in Brazil
  • William Norris (Confederate signal officer) (1820–1896)
  • William C. Norris (general) (1926–2024), United States Air Force general

Other

  • William Norris (antiquarian) (1719–1791), English clergyman and antiquarian
  • William Norris (locomotive builder) (1802–1867), American steam locomotive builder
  • William Norris (English cricketer) (1830–1889), English clergyman and cricketer
  • William Edward Norris (1847–1925), British author
  • William Foxley Norris (1859–1937), English clergyman, Dean of York
  • William Norris (Wellington cricketer) (1908–1988), New Zealand cricketer
  • William Norris (CEO) (1911–2006), American business executive, CEO of Control Data Corporation