Across the world, Вилхелм (Guilherme 
, Wilhelm 
, Вилхелм 
) is a widespread masculine first name. The forename Вилхелм is characteristic of Germany, where it is a common masculine name, Brazil, and Portugal, where it is quite a common boy's name (explore the name in all countries). Very seldom, Вилхелм is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Guilherme | Germany, Portugal, Angola, United States, Brazil |
| Wilhelm | Germany, Portugal, United States, Poland, Brazil |
| Вилхелм | Kyrgyzstan, Armenia, Russia, Bulgaria |
| Wilhlem | Germany, South Africa, Spain, United States, Argentina |
Bill, Ghilherme, Guglielmo, Guillaume, Guillem, Guillen, Guillermo, Guillén, Gulielmus, Gwilherm, Gwilym, Gwyllym, Vilem, Vilhelm, Vilhelmas, Vilhelmo, Vilhelms, Viljem, Ville, Vilmos, Vilém, Wilhelm Carl, Wilhem, Wiliam, Will, Willem, Willhelm, Willhelmus, William, Wm., Wylem, Μπιλ, Бил, Билл, Біл, Білл, Вил, Вилем, Вилл, Вилле, Виллем, Вилль, Вилмос, Вилмош, Вильгельм, Вильем, Вильмош, Вильям, Вилям, Вілем,
Вилхелм is also a prevalent name for the fictitious and mythical characters: William Tell , the folk hero of Switzerland; Friedrich Wilhelm Marcus , the character from Thomas Mann's Buddenbrooks; Wilhelm Melchior , the character in Olivier Assayas' film Clouds of Sils Maria; Wilhelm Gottsreich Sigismond von Ormstein , character in A Scandal in Bohemia and Wilhelm van Astrea , the fictional character from Re:Zero, Re:Zero − Starting Life in Another World, and in many other works.