Top Baby Names of 2021

What the Data Says About 2021

The Social Security Administration's national 2021 file shows 1,208,935 births concentrated in the top 100 boy and top 100 girl names, the segment of U.S. baby-name data released to the public for that year. The #1 boy name of 2021 was Liam, with 20,407 births registered nationally. The #1 girl name of 2021 was Olivia, with 17,841 births nationally. The top 100 boys captured 682,279 births compared with 526,656 for the top 100 girls — consistent with the historical SSA pattern in which a smaller pool of boy names dominates a larger share of annual births while girl names are more evenly distributed.

2021 sits within a specific era of U.S. naming trends. 2021 reflects the contemporary naming landscape — shorter names, -a endings for girls, classic revivals for boys, and a steadily flattening distribution in which no single name dominates the way they did mid-century. Liam and Olivia leading 2021 fits this broader cultural signature.

These rankings come directly from Social Security Administration card applications and represent approximately 96% of all U.S. births in 2021. Names with fewer than five occurrences nationally in 2021 are excluded from SSA's public file to protect privacy, meaning the true number of unique names given in 2021 is significantly larger than any public top-100 list can show. Each spelling variation is counted separately — Sophia and Sofia, Aiden and Ayden — so rankings reflect only the specific spelling filed on the SS card, not combined name pools. This page is provided for informational and research purposes only and does not constitute naming advice.