Seneca is a distinctive girls' name in United States, ranking #3283 in 2003 with 45 recorded births. The name reached its all-time peak in 2006 with 52 births ranking #3216. Since 1996, the popularity has increased by 55.2%. In 2003, approximately 1 in every 40,601 girls born was named Seneca. RISING Recent data shows the name is currently rising.