Langdon is a distinctive boys' name in United States, ranking #4357 in 2004 with 20 recorded births. The name reached its all-time peak in 2005 with 33 births ranking #3133. Since 1996, the popularity has increased by 100.0%. In 2004, approximately 1 in every 99,240 boys born was named Langdon. FALLING Recent data shows the name is currently falling.