Krystal is a moderately popular girls' name in United States, ranking #346 in 2000 with 890 recorded births. The name reached its all-time peak in 1996 with 1,336 births ranking #217. Since 1996, the popularity has decreased by 33.4%. In 2000, approximately 1 in every 2,040 girls born was named Krystal. FALLING Recent data shows the name is currently falling.