Lyndsey is a distinctive girls' name in United States, ranking #3684 in 2015 with 42 recorded births. The name reached its all-time peak in 1997 with 417 births ranking #563. Since 1996, the popularity has decreased by 89.1%. In 2015, approximately 1 in every 42,492 girls born was named Lyndsey. FALLING Recent data shows the name is currently falling.