Lynsey is a distinctive girls' name in United States, ranking #1250 in 1998 with 146 recorded births. This places Lynsey in the top 8% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1998 with 146 births ranking #1250. In 1998, approximately 1 in every 12,102 girls born was named Lynsey. FALLING Recent data shows the name is currently falling.