What does Langdon mean?
Langdon is a rare given name for males but a very popular surname for both adults and children (#3734 out of 150436, Top 2%). (2000 U.S. Census)
Below is a graphed analysis of the popularity of Langdon and corresponding names. The only prominent alternative form of Langdon (#unlisted) is Landon (#43 in 2014). These boy names were at the apex of their popularity in the year 2010 (usage of 0.968%) and have become significantly less widespread since (usage 0.957%, down 1.1%). Landon (#43) is the most fashionable birth name here, and there is a revival in baby name popularity for this name. (Top 1000 Baby Names Statistics, 2014)