Robert Griffiths may refer to:

Robert Griffiths (politician) (born 1952), British communist politician Robert Griffiths (physicist) (born 1937), American physicist Robert Griffiths (mathematician), Australian statistician Robert William Griffiths (1896–1962), Welsh farmer and businessman Bob Griffiths (writer) (born 1938), American author, playwright and professional speaker Bob Griffiths (priest) (born 1953), Church in Wales priest Bob Griffiths (footballer, born 1903) (1903–1970), Scottish footballer for Chelsea Bob Griffiths (footballer, born 1907) (1907–1976), Irish footballer Bobby Griffiths (born 1942), footballer for Chester City

See also Robert Griffith (disambiguation)