Robert Vaughn (1932–2016) was an American actor.
Robert Vaughn may also refer to:
- Sir Robert Vaughan, 2nd Baronet (1768–1843), Welsh landowner and Member of Parliament
- Robert Vaughan (minister) (1795–1868), English minister of the Congregationalist communion
- Robert Vaughn (Australian politician) (1833–1908), Australian politician and member of the New South Wales Legislative Assembly.
- Robert Vaughn (Montana rancher) (1836–1918), Welsh American and Montana pioneer
- Bobby Vaughn (born c. 1975), American surfer and co-founder of the Von Dutch clothing company
- Bobby Vaughn (baseball) (1885–1965), baseball player
- Bob Vaughn (born 1945), American football player
- Robert Vaughan (author), American author
