Sebastian is a highly popular boys' name in England & Wales, ranking #38 in 2021 with 1,516 recorded births. The name reached its all-time peak in 2016 with 1,990 births ranking #36. Since 1996, the popularity has increased by 283.8%. In 2021, approximately 1 in every 195 boys born was named Sebastian. FALLING Recent data shows the name is currently falling.