Sebastien is a distinctive boys' name in England & Wales, ranking #590 in 2004 with 41 recorded births. The name reached its all-time peak in 2014 with 70 births ranking #534. Since 1996, the popularity has increased by 156.3%. In 2004, approximately 1 in every 7,524 boys born was named Sebastien. STABLE Recent data shows the name is currently stable.