Masculine dossier · first seen 1914

Masayoshi

Extinct Near statistical disappearance

Peak era

1918

Peak births

Current vitality

Dormant

Peak generation

Greatest Generation

1914Peak 19182025

Quick answers about Masayoshi

How rare is Masayoshi?

Masayoshi 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.

How old is the typical Masayoshi?

The median age of a living American named Masayoshi is approximately 102 years, with most bearers falling between 99 and 104 years old.

Is Masayoshi still popular?

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

Peak year

1918

Decline from peak

100%

2025

All-time

133

Masayoshi 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.

Masayoshi peaked in 1918, when 13 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 133 Americans named Masayoshi since 1914.

Rarity scoreStatistical floor

Peak generationGreatest Generation

StabilityHighly era-bound

TrajectoryNear statistical disappearance

Living profile

Estimated living Americans with this name.

Median age102

Core range99–104

Playground Density Index 0.0%

Wave type

Flash Flood

A concentrated generational spike rather than a slow classic.