Jilleen — girls' name

What the Data Says About Jilleen

The Social Security Administration has registered 138 babies named Jilleen between 1948 and 1998, spanning 51 consecutive years of U.S. birth records. As a girl's name, Jilleen currently falls outside the top 1,000 girls' names for 1998. The name reached its historical peak in 1972, when 9 babies received it in a single year.

Decade-level aggregation shows that Jilleen performed strongest in the 1970s, accumulating 42 births during that ten-year window. Across the 6 decades of recorded activity, Jilleen shows a clear decline from its mid-century high.

No etymological entry is currently available for Jilleen 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 138 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.