In the entire world, William John (William John 
) is a rare boy's given name. The first name William John is habitual in Ireland, where it is quite a rare boy's name, Canada, where it is a rare masculine name, and Australia. Measured by absolute frequency, it most frequently occurs in Philippines, the United Kingdom, and Canada. Much less frequently, William John is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| William John | Philippines, United Kingdom, Ireland, Canada, Australia |
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william john burchell British scientist (1781-1863), GB (b. 1781) |
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william john codrington British general and politician (1804-1884), GB (b. 1804) |
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| william john huggins British artist (1781-1845), GB (b. 1781) |
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william john wills Explorer of Australia, AU (b. 1834) |
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| william john newton English painter and photographer, GB (b. 1785) |
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| william john lucas British entomologist, GB (b. 1858) |
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Tan, Speller, Barnett, Pearson, Redmond, Rintoul, Jamison, Trabert, Nienhaus, Hammond, Hepburn, Mcdonald, Campbell, Connelly, Bothwell, Robinson, Hodgetts, Valencia, Waldstein, Schofield, Priestley, Feliciano, Wright, Watson, Walker, Ingram, Fox, Carr, Bell, John, Moore, Schol, Smith, Aniag, Cooke, Baker, Wilkinson, Brown, Power, Judge, Martin, Cottam, Bailey, Bunker, Powell, Dawson, Hislop, Fuller, Knill, and Maxwellsteele