Mystery is a distinctive girls' name in United States, ranking #13371 in 2019 with 7 recorded births. The name reached its all-time peak in 2003 with 16 births ranking #7107. Since 1996, the popularity has decreased by 30.0%. In 2019, approximately 1 in every 239,653 girls born was named Mystery. STABLE Recent data shows the name is currently stable.