Roisin is a distinctive girls' name in United States, ranking #5869 in 2006 with 23 recorded births. The name reached its all-time peak in 2025 with 64 births ranking #2716. Since 1996, the popularity has increased by 43.8%. In 2006, approximately 1 in every 82,655 girls born was named Roisin. RISING Recent data shows the name is currently rising.