Langdon is a distinctive boys' name in United States, ranking #4704 in 2000 with 16 recorded births. The name reached its all-time peak in 2005 with 33 births ranking #3133. Since 1996, the popularity has increased by 60.0%. In 2000, approximately 1 in every 122,746 boys born was named Langdon. FALLING Recent data shows the name is currently falling.