Jastin is a distinctive girls' name in United States, ranking #10456 in 2001 with 9 recorded births. This places Jastin in the bottom 42% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2001 with 9 births ranking #10456. In 2001, approximately 1 in every 200,062 girls born was named Jastin. STABLE Recent data shows the name is currently stable.