Lexa is a distinctive girls' name in United States, ranking #3347 in 2005 with 46 recorded births. The name reached its all-time peak in 2017 with 115 births ranking #1808. Since 1996, the popularity has increased by 53.3%. In 2005, approximately 1 in every 40,167 girls born was named Lexa. FALLING Recent data shows the name is currently falling.