Roisin is a distinctive girls' name in United States, ranking #5968 in 2013 with 22 recorded births. The name reached its all-time peak in 2025 with 64 births ranking #2716. Since 1996, the popularity has increased by 37.5%. In 2013, approximately 1 in every 79,746 girls born was named Roisin. RISING Recent data shows the name is currently rising.