Cullen is a distinctive girls' name in United States, ranking #12423 in 1997 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 1997, approximately 1 in every 290,110 girls born was named Cullen. RISING Recent data shows the name is currently rising.