Masculine dossier · first seen 1900
Sinclair
Stable
Cross-generational persistence
Peak era
1924
Peak births
29
Current vitality
Rare
Peak generation
Greatest Generation
Quick answers about Sinclair
How many people are named Sinclair?
An estimated 767 living Americans are named Sinclair.
How rare is Sinclair?
Sinclair is very rare among babies today, with 14 boys receiving the name in 2025, down 51.7% from its 1924 peak.
How old is the typical Sinclair?
The median age of a living American named Sinclair is approximately 43 years, with most bearers falling between 29 and 62 years old.
Is Sinclair still popular?
Yes. Sinclair is holding steady, with 14 births in 2025 and a consistent recent baseline.
1900Peak 19242025
Peak year
1924
Decline from peak
51.7%
2025
14
All-time
1,435