Masculine dossier · first seen 1912

Masaichi

Extinct Near statistical disappearance

Peak era

1918

Peak births

Current vitality

Dormant

Peak generation

Greatest Generation

Quick answers about Masaichi

Masaichi has not appeared in SSA records since 1933. It is effectively extinct as a new baby name — no boys received it in the latest available data.

No. Masaichi is extinct in new births; the SSA last recorded it in 1933.

Masaichi has its strongest geographic signal in Hawaii, where it appears 386.2× more often than the national baseline.

1912Peak 19182025

Peak year

1918

Decline from peak

100%

2025

All-time

159

Masaichi disappeared from SSA records in 1933 and has not been seen in 92 years. Its absence is now longer than many names' entire recorded lifespan.

Masaichi peaked in 1918, when 21 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 159 Americans named Masaichi since 1912.

Rarity scoreStatistical floor

Peak generationGreatest Generation

StabilityHighly era-bound

TrajectoryNear statistical disappearance

Living profile

Estimated living Americans with this name.

Median age99

Core range96–102

Playground Density Index 0.0%

Wave type

Flash Flood

A concentrated generational spike rather than a slow classic.

Geographic heartland

Hawaii

386.2× higher affinity than the national baseline.

Hawaii · 1910s 386.2×

Hawaii · 1920s 345.1×