Robert Barker may refer to:
Robert Barker (MP for Ipswich) (died 1571), English MP for Ipswich (UK Parliament constituency), 1559
Robert Barker (MP for Thetford), English MP for Thetford (UK Parliament constituency)
Robert Barker (MP for Colchester) (fl. 1604-1611), English MP
Robert Barker (died 1618), English MP for Ipswich (UK Parliament constituency), 1593
Robert Barker (printer) (died 1645), English printer
Robert Barker (footballer) (1847–1915), English footballer who played for England
Robert Barker (painter) (1739–1806), English painter
Sir Robert Barker, 1st Baronet (1732 – 14 September 1789), Brigadier General
Bob Barker (born 1923), game show host
Bootie Barker (born 1971), crew chief in the NASCAR Sprint Cup stock car racing series
Robert Barker (tennis), American tennis player of the 1950s and 60s
Robert Hewitt Barker, British Member of Parliament for Sowerby, 1918–1922