Langdon is a distinctive boys' name in United States, ranking #3735 in 2002 with 23 recorded births. The name reached its all-time peak in 2005 with 33 births ranking #3133. Since 1996, the popularity has increased by 130.0%. In 2002, approximately 1 in every 84,412 boys born was named Langdon. FALLING Recent data shows the name is currently falling.