Deirdra — girls' name

What the Data Says About Deirdra

The Social Security Administration has registered 1,172 babies named Deirdra between 1944 and 2005, spanning 62 consecutive years of U.S. birth records. As a girl's name, Deirdra currently falls outside the top 1,000 girls' names for 2005. The name reached its historical peak in 1961, when 56 babies received it in a single year.

Decade-level aggregation shows that Deirdra performed strongest in the 1960s, accumulating 432 births during that ten-year window. Across the 7 decades of recorded activity, Deirdra shows a clear decline from its mid-century high. Geographically, the name is most concentrated in New York, which accounts for 45 births — the largest state-level total in the dataset — followed by California and Illinois. In total, SSA state-level files list Deirdra in 10 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Deirdra in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 1,172 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.