Recorded 1915–2025 · United States
Greg was most popular in 1961, when 5,409 American babies were given the name — ranking #170 that year. In 2025 it ranked #9,947, with 21 births. Across 1880–2025 the Social Security Administration has recorded 77,849 people named Greg.
Greg first appears in Social Security Administration records in 1915, which makes it about 110 years old as a recorded American name. It has been recorded in 104 of the 111 years since.
The Social Security Administration has recorded 77,849 American births named Greg 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 62,011 are estimated to be alive today.
21 American babies were named Greg in 2025, ranking #9,947 that year.
Greg is falling. Across 2021–2025 it averaged 24 births a year, against 39 a year across 2011–2015 — a change of -38% over the decade.
Measured on recorded births. American births overall have fallen since 2007, so most established names lose births over any recent decade — a name can shed births and still hold its rank. Compare the rank above, which is measured against the other names of the same year.
Across the whole record Greg is a boy’s name — 0.2% of the 77,849 Americans given it were girls and 99.8% were boys. In births since 2016 it is 0% girls and 100% 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.
Roughly 62,011 Americans named Greg are alive today — 80% of everyone ever recorded with the name. The median is 63 years old, and half are between 56 and 67. That is a narrow band: Greg arrived and faded within about a decade rather than staying in steady use.
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.
How much more common the name is in each state than across the country as a whole.
See Greg on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org