Alphonsus — #8301 US boys' name

What the Data Says About Alphonsus

The Social Security Administration has registered 447 babies named Alphonsus between 1883 and 2024, spanning 142 consecutive years of U.S. birth records. As a boy's name, Alphonsus currently holds the #8301 rank among boys for 2024. The name reached its historical peak in 1917, when 28 babies received it in a single year.

Decade-level aggregation shows that Alphonsus performed strongest in the 1920s, accumulating 136 births during that ten-year window. Across the 12 decades of recorded activity, Alphonsus shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Pennsylvania, which accounts for 32 births — the largest state-level total in the dataset — followed by New York and Massachusetts. In total, SSA state-level files list Alphonsus in 3 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Alphonsus 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 447 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.