Langdon is a distinctive boys' name in United States, ranking #5145 in 1997 with 12 recorded births. The name reached its all-time peak in 2005 with 33 births ranking #3133. Since 1996, the popularity has increased by 20.0%. In 1997, approximately 1 in every 157,091 boys born was named Langdon. FALLING Recent data shows the name is currently falling.