Recorded 1933–2025 · United States
Deidre was most popular in 1963, when 541 American babies were given the name — ranking #737 that year. In 2025 it ranked #18,449, with 8 births. Across 1880–2025 the Social Security Administration has recorded 14,684 people named Deidre.
Deidre first appears in Social Security Administration records in 1933, which makes it about 92 years old as a recorded American name. It has been recorded in 86 of the 93 years since.
The Social Security Administration has recorded 14,684 American births named Deidre 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 13,440 are estimated to be alive today.
8 American babies were named Deidre in 2025, ranking #18,449 that year.
Deidre is too rare for a direction to mean much. It averaged 6 births a year across 2021–2025 against 8 a year a decade earlier — at these counts a single baby moves the percentage, and any year under five births is withheld at source.
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 Deidre is a girl’s name — 99.9% of the 14,684 Americans given it were girls and 0.1% were boys. In births since 2016 it is 100% girls and 0% 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 13,440 Americans named Deidre are alive today — 92% of everyone ever recorded with the name. The median is 53 years old, and half are between 41 and 62.
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 Deidre on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org