Morrigan is a distinctive girls' name in United States, ranking #2742 in 2025 with 63 recorded births. The name reached its all-time peak in 2023 with 69 births ranking #2573. Since 1996, the popularity has increased by 320.0%. In 2025, approximately 1 in every 25,512 girls born was named Morrigan. STABLE Recent data shows the name is currently stable.