Lux is a distinctive girls' name in United States, ranking #2055 in 2012 with 94 recorded births. This places Lux in the top 11% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2014 with 124 births ranking #1702. In 2012, approximately 1 in every 18,731 girls born was named Lux. FALLING Recent data shows the name is currently falling.