Glennon
Recorded 1912–1995 · United States
Glennon was most popular in 1957, when 33 American babies were given the name — ranking #3,103 that year. It was not recorded in 2025. Across 1880–2025 the Social Security Administration has recorded 1,244 people named Glennon.
Glennon over time
How old is the name Glennon?
Glennon first appears in Social Security Administration records in 1912, which makes it about 113 years old as a recorded American name. It has been recorded in 74 of the 114 years since. It was last recorded in 1995.
How many people are named Glennon?
The Social Security Administration has recorded 1,244 American births named Glennon 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 528 are estimated to be alive today.
How many babies were named Glennon in 2025?
Glennon 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 Glennon a boy’s or a girl’s name?
Across the whole record Glennon is a boy’s name — 0.0% of the 1,244 Americans given it were girls and 100.0% 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 Glennon?
Roughly 528 Americans named Glennon are alive today — 42% of everyone ever recorded with the name. The median is 68 years old, and half are between 59 and 76.
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 Glennon is most concentrated
How much more common the name is in each state than across the country as a whole.
Explore further
See Glennon on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org