Langdon is a distinctive boys' name in United States, ranking #4311 in 2006 with 22 recorded births. The name reached its all-time peak in 2005 with 33 births ranking #3133. Since 1996, the popularity has increased by 120.0%. In 2006, approximately 1 in every 93,415 boys born was named Langdon. FALLING Recent data shows the name is currently falling.