Chastin is a distinctive boys' name in United States, ranking #3863 in 2001 with 21 recorded births. The name reached its all-time peak in 2007 with 23 births ranking #4256. Since 1996, the popularity has increased by 75.0%. In 2001, approximately 1 in every 92,516 boys born was named Chastin. FALLING Recent data shows the name is currently falling.