Langdon is a distinctive boys' name in United States, ranking #3920 in 2001 with 21 recorded births. This places Langdon in the top 32% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2005 with 33 births ranking #3133. Since 1996, the popularity has increased by 110.0%. In 2001, approximately 1 in every 92,516 boys born was named Langdon. FALLING Recent data shows the name is currently falling.