Seneca is a distinctive boys' name in United States, ranking #7027 in 2021 with 12 recorded births. The name reached its all-time peak in 2007 with 41 births ranking #2914. Since 1996, the popularity has decreased by 29.4%. In 2021, approximately 1 in every 145,686 boys born was named Seneca. STABLE Recent data shows the name is currently stable.