Irby
Recorded 1896–1991 · United States
Irby was most popular in 1916, when 39 American babies were given the name — ranking #2,081 that year. It was not recorded in 2025. Across 1880–2025 the Social Security Administration has recorded 1,130 people named Irby.
Irby over time
How old is the name Irby?
Irby first appears in Social Security Administration records in 1896, which makes it about 129 years old as a recorded American name. It has been recorded in 72 of the 130 years since. It was last recorded in 1991.
How many people are named Irby?
The Social Security Administration has recorded 1,130 American births named Irby between 1880 and 2025. That is recorded US births, not a world population — it counts people issued a Social Security number at birth in the United States. Of those, roughly 307 are estimated to be alive today.
How many babies were named Irby in 2025?
Irby was not recorded in 2025. The SSA withholds any name given to fewer than five babies in a year, so fewer than five American babies were given it.
Is Irby a boy’s or a girl’s name?
Across the whole record Irby is a boy’s name — 2.3% of the 1,130 Americans given it were girls and 97.7% were boys.
Counted from every US birth the Social Security Administration recorded under this name, so it reflects use rather than opinion. A name given to fewer than five babies of one sex in a year is withheld at source and is not counted.
How old is someone named Irby?
Roughly 307 Americans named Irby are alive today — 27% of everyone ever recorded with the name. The median is 72 years old, and half are between 63 and 80.
An estimate, not a count. Recorded births are carried forward through the Social Security Administration’s 2023 period life table, by age and sex. That table describes mortality in one recent year, so it credits the oldest cohorts with today’s survival rather than the harsher rates they actually lived through — the further back a name peaked, the more this will overstate how many remain. It counts people issued a Social Security number at birth, not immigrants who arrived later.
Where Irby is most concentrated
How much more common the name is in each state than across the country as a whole.
Explore further
See Irby on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org