Lyndsey is a distinctive girls' name in United States, ranking #718 in 2001 with 340 recorded births. The name reached its all-time peak in 1997 with 417 births ranking #563. Since 1996, the popularity has decreased by 11.7%. In 2001, approximately 1 in every 5,296 girls born was named Lyndsey. FALLING Recent data shows the name is currently falling.