Langdon is a distinctive boys' name in United States, ranking #5943 in 2016 with 15 recorded births. The name reached its all-time peak in 2005 with 33 births ranking #3133. Since 1996, the popularity has increased by 50.0%. In 2016, approximately 1 in every 126,481 boys born was named Langdon. FALLING Recent data shows the name is currently falling.