Masculine dossier · first seen 1896

Irby

Extinct Near statistical disappearance

Peak era

1918

Peak births

Current vitality

Dormant

Peak generation

Greatest Generation

Quick answers about Irby

How many people are named Irby?

Based on SSA birth records through 1991, an estimated 253 Americans born with the name Irby may still be living. No new bearers have been recorded since 1991.

How rare is Irby?

Irby has not appeared in SSA records since 1991. It is effectively extinct as a new baby name — no boys received it in the latest available data.

How old is the typical Irby?

The median age of a living American named Irby is approximately 70 years, with most bearers falling between 60 and 77 years old.

Is Irby still popular?

No. Irby is extinct in new births; the SSA last recorded it in 1991.

1896Peak 19182025

Peak year

1918

Decline from peak

100%

2025

All-time

1,104

Irby disappeared from SSA records in 1991 and has not been seen in 34 years. Its absence is now longer than many names' entire recorded lifespan.

Irby peaked in 1918, when 37 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 1,104 Americans named Irby since 1896.

Rarity scoreStatistical floor

Peak generationGreatest Generation

StabilityHighly era-bound

TrajectoryNear statistical disappearance

Living profile

317

Estimated living Americans with this name.

Median age72

Core range63–81

Playground Density Index 0.0%

Wave type

Plateau

A name with moderate spread and no sharp recent move.