William Jones is a common name, especially in Wales, and there have been several well-known individuals of this name, including:

• William Jones (judge) (1566-1640)
• William Jones (Great Britain statesman) , Attorney General for England and Wales during the 17th century
• Sir William Jones (mathematician) (~1675-1749), father of Sir William Jones (philologist)
• William Jones (translator) (1726-1795)
• William Jones (ecclesiastic) (1726-1800)
• Sir William Jones (philologist) (1746-1794) son of Sir William Jones (mathematician)
• William Jones (statesman) (1760-1831), fourth United States Secretary of the Navy
• William Ellis Jones (author) (1795-1848)
• William Jones (Chartist) (19th century)
• William E. "Grumble" Jones (1824-1864), Confederate cavalry general
• William Jones (historian) (1860-1932)
• William Owen Jones (Nonconformist leader) (1861-1937)
• William Lewis Jones (author) (1866-1922)
• William Jones (VC), the recipient of the Victoria Cross
• William A. Jones III , co-founder of the Christmas Mofia (a group to save Christmas)