Masculine dossier · first seen 1987
Mateusz
Stable Decline
Gradual decline from 2008
Peak era
2008
Peak births
62
Current vitality
Rare
Peak generation
Gen Z
Quick answers about Mateusz
How many people are named Mateusz?
An estimated 1,136 living Americans are named Mateusz.
How rare is Mateusz?
Mateusz is very rare among babies today, with 10 boys receiving the name in 2025, down 83.9% from its 2008 peak.
How old is the typical Mateusz?
The median age of a living American named Mateusz is approximately 23 years, with most bearers falling between 18 and 29 years old.
Is Mateusz still popular?
Not especially. Mateusz has been declining since its 2008 peak and registered 10 births in 2025.
Where is Mateusz most common?
Mateusz has its strongest geographic signal in Illinois, where it appears 11.7× more often than the national baseline.
1987Peak 20082025
Peak year
2008
Decline from peak
83.9%
2025
10
All-time
1,156
Where it lives now
Mateusz is most concentrated in Illinois — about 10.4× the national rate in the 2010s.
States where Mateusz is given more often than the national average — its present-day heartland.