Lexa is a distinctive girls' name in United States, ranking #3682 in 2015 with 42 recorded births. The name reached its all-time peak in 2017 with 115 births ranking #1808. Since 1996, the popularity has increased by 40.0%. In 2015, approximately 1 in every 42,492 girls born was named Lexa. FALLING Recent data shows the name is currently falling.