Alexa is a highly popular girls' name in United States, ranking #43 in 2009 with 5,310 recorded births. The name reached its all-time peak in 2006 with 6,117 births ranking #39. Since 1996, the popularity has increased by 62.9%. In 2009, approximately 1 in every 346 girls born was named Alexa. FALLING Recent data shows the name is currently falling.