Theory — #7849 US unisex name

What the Data Says About Theory

The Social Security Administration has registered 142 babies named Theory between 2006 and 2024, spanning 19 consecutive years of U.S. birth records. As a girl's name, Theory currently holds the #7849 rank among girls for 2024. The name reached its historical peak in 2023, when 19 babies received it in a single year. Theory is classified as unisex in SSA records: the opposite-sex variant accounts for 81 additional births since 2009.

Decade-level aggregation shows that Theory performed strongest in the 2020s, accumulating 77 births during that ten-year window. Across the 3 decades of recorded activity, Theory shows a stable profile with only moderate drift from its peak decade.

No etymological entry is currently available for Theory 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 142 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.