Guilherme
Guilherme Name Meaning, Origin & Popularity
/ɡi.ˈʎɛɾ.mɨ/
Meaning of Guilherme: Guilherme is the Portuguese adaptation of the Germanic name Wilhelm, built from wil (will) and helm (helmet, protection), meaning "resolute protector.
Norman knights who fought alongside Portuguese rulers during the Reconquista in the 11th and 12th centuries introduced the name to Iberian soil. William of Montreuil and other Norman commanders contributed to early Portuguese military campaigns. Their presence linked the name to valor and military leadership across Portuguese-speaking territories.
In Brazil, Guilherme ranked 9th among male names in 2023 according to IBGE records, with over 14,000 registrations that year. The name has held top-15 positioning in Brazilian rankings for more than 3 consecutive decades, demonstrating durability across generational shifts in naming trends driven by media and celebrity culture.
What Does Guilherme Mean? Origin & Etymology
Guilherme de Almeida (1890-1969), the celebrated Brazilian poet and translator of Shakespeare, gave the name cultural prominence in 20th-century Lusophone letters. In Portugal, Guilherme ranked 12th in 2022 national birth registrations per Instituto dos Registos e do Notariado figures, confirming its appeal across both Atlantic Lusophone nations.
Cognates include Guillaume (French), Willem (Dutch), Wilhelm (German), Guillermo (Spanish), and Guglielmo (Italian). All share the Proto-Germanic root *Wiljahelmaz. The English form William ranked 5th in US SSA birth records for 2024, making this name family one of the most enduringly popular across Western Europe and the Americas.
Numerology & Symbolism of Guilherme
Based on Pythagorean numerology — a traditional system linking name letters to numbers. Presented for cultural interest.
Guilherme – Similar Names & Alternatives
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Frequently Asked Questions about Guilherme
What does the name Guilherme mean?
Guilherme derives from the Old High German Willehelm, composed of willo meaning 'will' or 'desire' and helm meaning 'helmet' or 'protection.' The combined sense is 'resolute protector.' It is the Portuguese form of William. William the Conqueror (1028-1087) carried the name to England and made it one of medieval Europe's most prestigious choices.
Where does the name Guilherme come from?
The Germanic Wilhelm spread across Europe through Norman and Frankish influence. It entered Portugal as Guilherme through dynastic and ecclesiastical channels during the 12th century. In Brazil, where it consistently ranks in the top 20 boys' names, Guilherme represents the Portuguese adaptation of the name's global popularity.
Is Guilherme a popular name today?
Guilherme ranks in the top 20 boys' names in Brazil and appears regularly in Portugal. It is particularly favored in Brazil, where it has been a top-20 name for several decades. The name's strength in Brazil reflects both the William tradition and the Brazilian preference for classic Portuguese forms.