Robert Griffith is a former American football player.
Robert Griffith may also refer to:
- Robert Griffith (MP) (1501/02–1568), MP for Salisbury
- Robert Griffith (MP for Caernarvon Boroughs), in 1593, MP for Caernarvon Boroughs (UK Parliament constituency)
- Robert Griffith (historian) (1940–2011), American historian
- Bob Griffith (1912–1977), baseball player
- Robert E. Griffith (died 1961), producer