| Group info: | | Language of origin: | Old High German |
| Info about origin, male: | old German/Germanic two-element name |
| | very popular throughout Europe during the Middle Ages |
| | name of several important kings, e.g. William the Conqueror, the first Norman king of England |
| Words: | willio = the will, the desire Old High German |
| | helm = the helmet, the protection Old High German |
| Topics: | Two-element name |
| Variants' top ranks: | 1:William Sweden 2022, 1:Liam Switzerland 2019, 1:Wilma Sweden 2007, 2:Wiremu New Zealand/Maori 2023, 6:Guilherme Brazil 2009, 8:Vilho Finland/Finnish 2023, 11:Vilma Finland/Finnish 2015, 12:Guillaume France 1997, 12:Ville Finland/Finnish 2006, 13:Willy Belgium 2013 |
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| Name variants: All variants, grouped by language of use | | Language | Female Variants | Male Variants |
| German | Minna, Wilhelma, Wilhelmina, Wilhelmine, Wilma | Wilhelm, Wilko, Willi |
| Dutch | | Guilielmus, Jelle, Pim, Willem, Wim |
| Portuguese | | Guilherme, Wilian |
| Low German | | Wilko |
| Scandinavian | | Vilhelm, Ville, Villum |
| Frisian | | Jelte, Wilko |
| French | | Guilhem, Guillaume, Lyam, William |
| Italian | Guglielmina, Gulielma | Guglielmo |
| Spanish | Guillermina | Guillermo |
| English | Billie, Minna, Minnie, Velma, Willa | Bill, Billie, Billy, Will, William, Willie, Willy |
| Finnish | | Vilho, Vili, Viljami, Viljo, Ville |
| Hungarian | | Vilmos |
| Polish | Minka | |
| Russian | Vilma | |
| Irish | | Liam |
| Catalan | | Guillem |
| Maori | | Wiremu |
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| Name variants: 14 female and 34 male name variants, sorted by name and gender | |
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