Langdon is a distinctive boys' name in United States, ranking #5434 in 2003 with 14 recorded births. The name reached its all-time peak in 2005 with 33 births ranking #3133. Since 1996, the popularity has increased by 40.0%. In 2003, approximately 1 in every 141,091 boys born was named Langdon. FALLING Recent data shows the name is currently falling.