Callin is a distinctive boys' name in United States, ranking #10809 in 2001 with 5 recorded births. This places Callin in the bottom 12% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2010 with 15 births ranking #5780. In 2001, approximately 1 in every 388,566 boys born was named Callin. FALLING Recent data shows the name is currently falling.