Masculine dossier · first seen 1913

Nobuo

Extinct Near statistical disappearance

Peak era

1921

Peak births

Current vitality

Dormant

Peak generation

Greatest Generation

1913Peak 19212025

Quick answers about Nobuo

Nobuo has not appeared in SSA records since 1938. It is effectively extinct as a new baby name — no boys received it in the latest available data.

The median age of a living American named Nobuo is approximately 97 years, with most bearers falling between 95 and 100 years old.

No. Nobuo is extinct in new births; the SSA last recorded it in 1938.

Peak year

1921

Decline from peak

100%

2025

All-time

242

Nobuo disappeared from SSA records in 1938 and has not been seen in 87 years. Its absence is now longer than many names' entire recorded lifespan.

Nobuo peaked in 1921, when 23 boys were given the name.

No boys were recorded with this name in 2025 — at least not five of them (the SSA's reporting floor).

Down 100% from its peak.

In all, the Social Security Administration has recorded about 242 Americans named Nobuo since 1913.

Rarity scoreStatistical floor

Peak generationGreatest Generation

StabilityHighly era-bound

TrajectoryNear statistical disappearance

Living profile

Estimated living Americans with this name.

Median age97

Core range95–100

Playground Density Index 0.0%

Wave type

Flash Flood

A concentrated generational spike rather than a slow classic.