Seneca is a distinctive girls' name in United States, ranking #4004 in 2009 with 39 recorded births. The name reached its all-time peak in 2006 with 52 births ranking #3216. Since 1996, the popularity has increased by 34.5%. In 2009, approximately 1 in every 47,099 girls born was named Seneca. RISING Recent data shows the name is currently rising.