What does Vaughan mean?
Vaughan is an unusual first name for males but a very prominent last name for both adults and children (#837 out of 150436, Top 1%). (2000 U.S. Census)
Below is a charted comparison of the usage of the boy name Vaughan and affiliated names. Vaughn (#938 the previous year) is the only popular related form of Vaughan (#unlisted) ranked in the Top 1000. These boy names were at the height of their popularity during 1940-1949 (usage of 0.534%) and have become much less widespread since (usage 0.062%, down 88.4%), with Vaughn becoming less in vogue. (2014 Birth Statistics)