So — unisex name

What the Data Says About So

The Social Security Administration has registered 47 babies named So between 1979 and 1993, spanning 15 consecutive years of U.S. birth records. As a girl's name, So currently falls outside the top 1,000 girls' names for 1993. The name reached its historical peak in 1993, when 8 babies received it in a single year. So is classified as unisex in SSA records: the opposite-sex variant accounts for 5 additional births since 2017.

Decade-level aggregation shows that So performed strongest in the 1980s, accumulating 22 births during that ten-year window. Across the 3 decades of recorded activity, So shows a stable profile with only moderate drift from its peak decade.

No etymological entry is currently available for So 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 47 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.