Masculine dossier · first seen 1915

Shizuo

Extinct Near statistical disappearance

Peak era

1920

Peak births

Current vitality

Dormant

Peak generation

Greatest Generation

1915Peak 19202025

Quick answers about Shizuo

Shizuo has not appeared in SSA records since 1929. 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 Shizuo is approximately 101 years, with most bearers falling between 98 and 104 years old.

No. Shizuo is extinct in new births; the SSA last recorded it in 1929.

Peak year

1920

Decline from peak

100%

2025

All-time

135

Shizuo disappeared from SSA records in 1929 and has not been seen in 96 years. Its absence is now longer than many names' entire recorded lifespan.

Shizuo peaked in 1920, when 14 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 135 Americans named Shizuo since 1915.

Rarity scoreStatistical floor

Peak generationGreatest Generation

StabilityHighly era-bound

TrajectoryNear statistical disappearance

Living profile

Estimated living Americans with this name.

Median age101

Core range98–104

Playground Density Index 0.0%

Wave type

Flash Flood

A concentrated generational spike rather than a slow classic.