Krystal is a moderately popular girls' name in United States, ranking #247 in 1997 with 1,188 recorded births. The name reached its all-time peak in 1996 with 1,336 births ranking #217. Since 1996, the popularity has decreased by 11.1%. In 1997, approximately 1 in every 1,465 girls born was named Krystal. FALLING Recent data shows the name is currently falling.