Guillerma — girls' name

What the Data Says About Guillerma

The Social Security Administration has registered 33 babies named Guillerma between 1922 and 1940, spanning 19 consecutive years of U.S. birth records. As a girl's name, Guillerma currently falls outside the top 1,000 girls' names for 1940. The name reached its historical peak in 1930, when 7 babies received it in a single year.

Decade-level aggregation shows that Guillerma performed strongest in the 1920s, accumulating 21 births during that ten-year window. Across the 3 decades of recorded activity, Guillerma shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Texas, which accounts for 6 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Guillerma in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Guillerma 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 33 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.