Sebastian is a highly popular boys' name in United States, ranking #19 in 2021 with 8,930 recorded births. The name reached its all-time peak in 2016 with 10,308 births ranking #23. Since 1996, the popularity has increased by 461.6%. In 2021, approximately 1 in every 196 boys born was named Sebastian. STABLE Recent data shows the name is currently stable.