Lyndon is a distinctive boys' name in United States, ranking #1509 in 2009 with 111 recorded births. The name reached its all-time peak in 2015 with 155 births ranking #1195. Since 1996, the popularity has increased by 30.6%. In 2009, approximately 1 in every 17,868 boys born was named Lyndon. FALLING Recent data shows the name is currently falling.