Mystery is a distinctive girls' name in United States, ranking #10489 in 1997 with 8 recorded births. The name reached its all-time peak in 2003 with 16 births ranking #7107. Since 1996, the popularity has decreased by 20.0%. In 1997, approximately 1 in every 217,582 girls born was named Mystery. STABLE Recent data shows the name is currently stable.