In the world, Wiliiam (Wiliiam 
) is a rare boy's first name. The first name Wiliiam is characteristic of the United States, where it is a very rare masculine name, and India, where it is an extremely rare male name. Much less frequently, Wiliiam is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Wiliiam | Tanzania, Nigeria, United States, Colombia, India |
| wiliiam douglas burnett (born 1913) (b. 1913) |
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| wiliiam edward guest Peerage person ID=252383 |
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