Krystal is a moderately popular girls' name in United States, ranking #373 in 2001 with 795 recorded births. The name reached its all-time peak in 1996 with 1,336 births ranking #217. Since 1996, the popularity has decreased by 40.5%. In 2001, approximately 1 in every 2,265 girls born was named Krystal. FALLING Recent data shows the name is currently falling.