Seb is a distinctive boys' name in England & Wales, ranking #999 in 2011 with 27 recorded births. This places Seb in the top 16% of ranked UK boys' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2018 with 58 births ranking #619. In 2011, approximately 1 in every 12,809 boys born was named Seb. FALLING Recent data shows the name is currently falling.