Mystery is a distinctive girls' name in United States, ranking #9669 in 2000 with 10 recorded births. This places Mystery in the bottom 45% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2003 with 16 births ranking #7107. In 2000, approximately 1 in every 181,597 girls born was named Mystery. STABLE Recent data shows the name is currently stable.