Chastin is a distinctive boys' name in United States, ranking #5361 in 1999 with 12 recorded births. This places Chastin in the top 46% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2007 with 23 births ranking #4256. In 1999, approximately 1 in every 160,007 boys born was named Chastin. FALLING Recent data shows the name is currently falling.