Around the globe, ウイリアム (Willam 
, ウイリアム 
) is quite a common predominantly male, but very infrequently female first name. The first name ウイリアム is habitual in Latin America and the Caribbean, particularly Bolivia, where it is quite a rare masculine name, Peru, and Uruguay. Measured by absolute frequency, the name is most common in India, Nigeria, and Peru. Much less frequently, ウイリアム is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Willam | Bolivia, Nigeria, United States, India, Peru |
| ウイリアム | Japan |
Bill, Ghilherme, Goulielmos, Guglielmo, Guilhem, Guilherme, Guillaume, Guillem, Guillerme, Guillermo, Guillén, Gulielmus, Gwilherm, Gwilym, Gwyllym, Morad, Murad, Uiliam, Uiriam, Uiriamu, Vilem, Vilhelm, Vilhelmo, Vilho, Viliamu, Viljam, Viljami, Viljem, Viljo, Vilmos, Vilém, Wai-Lim, Wei-Lian, Wei-Lien, Wilhelm, Wilhelm Carl, Wiliam, Will, Willem, William, Williams, Wiremu, Wm., Μπιλ, Бил, Билл, Біл, Білл, Вил, Вилем,
ウイリアム is also a prevalent name for the fictitious and mythical characters: Captain Marvel , the fictional DC character, Batman: The Brave and the Bold; William Riker , the fictional character in Star Trek; Buck Rogers , the science fiction hero, Amazing Stories; Mr William Collins , the fictional character from Pride and Prejudice by Jane Austen, Pride & Prejudice and Roy Harper , the DC Comics character, Arrow, and in many other works.
| ウイリアム・ヘイムス Japanese photographer, JP (b. 1952) |
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