Caullin is a distinctive boys' name in United States, ranking #6606 in 2002 with 10 recorded births. This places Caullin in the bottom 47% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2002 with 10 births ranking #6606. In 2002, approximately 1 in every 194,147 boys born was named Caullin. STABLE Recent data shows the name is currently stable.