What does Vaughan mean?
Vaughan is an unusual first name for males but a very prominent last name for both adults and children (#854 out of 88799, 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). This boy name was at the height of its popularity during 1940-1949 and has become much less widespread since, with the version Vaughn becoming less in vogue. (Top 1000 Birth Names Records, 2014)