Niilo — boys' name

What the Data Says About Niilo

The Social Security Administration has registered 44 babies named Niilo between 1914 and 2021, spanning 108 consecutive years of U.S. birth records. As a boy's name, Niilo currently falls outside the top 1,000 boys' names for 2021. The name reached its historical peak in 1916, when 7 babies received it in a single year.

Decade-level aggregation shows that Niilo performed strongest in the 1910s, accumulating 25 births during that ten-year window. Across the 3 decades of recorded activity, Niilo shows a clear decline from its mid-century high.

No etymological entry is currently available for Niilo 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 44 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.