Masculine dossier · first seen 1913

Seichi

Extinct Near statistical disappearance

Peak era

1922

Peak births

Current vitality

Dormant

Peak generation

Greatest Generation

1913Peak 19222025

Quick answers about Seichi

Seichi has not appeared in SSA records since 1931. 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 Seichi is approximately 101 years, with most bearers falling between 98 and 104 years old.

No. Seichi is extinct in new births; the SSA last recorded it in 1931.

Peak year

1922

Decline from peak

100%

2025

All-time

171

Seichi disappeared from SSA records in 1931 and has not been seen in 94 years. Its absence is now longer than many names' entire recorded lifespan.

Seichi peaked in 1922, 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 171 Americans named Seichi since 1913.

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.