Cullan is a distinctive boys' name in United States, ranking #8838 in 2003 with 7 recorded births. The name reached its all-time peak in 2000 with 21 births ranking #3795. Since 1996, the popularity has decreased by 46.2%. In 2003, approximately 1 in every 282,181 boys born was named Cullan. STABLE Recent data shows the name is currently stable.