Masculine dossier · first seen 1921
Guilherme
Stable Decline
Gradual decline from 2006
Peak era
2006
Peak births
39
Current vitality
Rare
Peak generation
Gen Z
1921Peak 20062025
Quick answers about Guilherme
How many people are named Guilherme?
An estimated 510 living Americans are named Guilherme.
How rare is Guilherme?
Guilherme is very rare among babies today, with 8 boys receiving the name in 2025, down 79.5% from its 2006 peak.
How old is the typical Guilherme?
The median age of a living American named Guilherme is approximately 19 years, with most bearers falling between 13 and 24 years old.
Is Guilherme still popular?
Not especially. Guilherme has been declining since its 2006 peak and registered 8 births in 2025.
Peak year
2006
Decline from peak
79.5%
2025
8
All-time
522