Chastin is a distinctive boys' name in United States, ranking #5079 in 2000 with 14 recorded births. The name reached its all-time peak in 2007 with 23 births ranking #4256. Since 1996, the popularity has increased by 16.7%. In 2000, approximately 1 in every 140,281 boys born was named Chastin. FALLING Recent data shows the name is currently falling.