Chastin is a distinctive boys' name in United States, ranking #4256 in 2007 with 23 recorded births. The name reached its all-time peak in 2007 with 23 births ranking #4256. Since 1996, the popularity has increased by 91.7%. In 2007, approximately 1 in every 90,228 boys born was named Chastin. FALLING Recent data shows the name is currently falling.