Cullen is a distinctive girls' name in United States, ranking #13590 in 2025 with 6 recorded births. The name reached its all-time peak in 2012 with 8 births ranking #12480. Since 1996, the popularity has decreased by 14.3%. In 2025, approximately 1 in every 267,878 girls born was named Cullen. RISING Recent data shows the name is currently rising.