Chastin is a distinctive boys' name in United States, ranking #5074 in 2003 with 15 recorded births. The name reached its all-time peak in 2007 with 23 births ranking #4256. Since 1996, the popularity has increased by 25.0%. In 2003, approximately 1 in every 131,685 boys born was named Chastin. FALLING Recent data shows the name is currently falling.