Diedre vs Dierdre
American parents have registered 1,795 Diedres since 1880, against 1,115 Dierdres. Neither name reached five babies in 2025.
Babies given each name, 1880–2025
Diedre Dierdre
Each line is every baby given the name that year, girls and boys added together — the only count that means the same thing for both names. A line breaks where the name fell below five babies in a year — the point at which the SSA stops publishing it — rather than being drawn through a figure nobody published. A single published year in a gap shows as a dot.
Who was ahead
Of the 61 years in which either name was published, Diedre for 52 years and Dierdre for 9 years. The lead changed hands 6 times.
Side by side
| Diedre | Dierdre | |
|---|---|---|
| Total US births | 1,795 | 1,115 |
| Most in one year | 88 | 63 |
| Babies in 2025 | under 5 | under 5 |
| Estimated living today | 1,600 | 980 |
| Median age today | 56 | 58 |
| Peak year | 1964 | 1961 |
| Best rank | 1,172nd girls | 1,406th girls |
| Rank in 2025 | unranked | unranked |
| First recorded | 1944 | 1941 |
| Girls / boys | 1,795 / 0 | 1,115 / 0 |
A rank is a position within one sex’s list for one year, so the two rank rows are not subtracted from one another and the winning column is not marked on them. The living figure is a life-table estimate, not a count.
Which name is older
Half of the Dierdres alive today are over 58; half the Diedres are over 56. That is 2 years between them: two names in use at the same time, worn by two different generations.
Where each one is strongest
- Diedre New York (3.8×), California (3.6×), Louisiana (3.2×)
- Dierdre New York (8.0×), California (2.4×)
How much commoner the name is in that state than it is nationally, from births recorded since 1910.
Compare something else
Related comparisons
Social Security Administration birth records, 1880–2025, public domain. Full histories: Diedre and Dierdre.