Lyndsey is a distinctive girls' name in United States, ranking #639 in 2000 with 392 recorded births. This places Lyndsey in the top 4% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 1997 with 417 births ranking #563. In 2000, approximately 1 in every 4,633 girls born was named Lyndsey. FALLING Recent data shows the name is currently falling.