William Wriothesley or Wrythe (pronunciation uncertain: /ˈraɪzli/ RYE-zlee (archaic), /ˈrɒtsli/ ROTT-slee (present-day) and /ˈraɪəθsli/ RYE-əths-lee have been suggested) (died 1513) was an officer of arms at the College of Arms in London. He was the second son of Garter King of Arms, John Writhe; the younger brother of Thomas Wriothesley; and the father of Thomas Wriothesley, 1st Earl of Southampton.