Seneca is a distinctive girls' name in United States, ranking #3996 in 2008 with 40 recorded births. The name reached its all-time peak in 2006 with 52 births ranking #3216. Since 1996, the popularity has increased by 37.9%. In 2008, approximately 1 in every 47,268 girls born was named Seneca. RISING Recent data shows the name is currently rising.