Langdon is a distinctive boys' name in United States, ranking #4018 in 2013 with 25 recorded births. The name reached its all-time peak in 2005 with 33 births ranking #3133. Since 1996, the popularity has increased by 150.0%. In 2013, approximately 1 in every 75,650 boys born was named Langdon. FALLING Recent data shows the name is currently falling.