Robert Barnes may refer to:

Sportspeople

• Robert Barnes (sportsman) (1911–1987), Irish cricketer and rugby union player
• Robert Barnes (Australian footballer) (1896–1967), Australian rules footballer
• Robert Barnes (footballer, born 1969), English footballer
• Bob Barnes (baseball) (1902–1993), Major League Baseball pitcher
• Bobby Barnes (born 1962), English footballer

Other people

• Robert Barnes (attorney), American attorney
• Robert Barnes (martyr) (1495–1540), English reformer
• Robert Barnes (physician) (1817–1907), English obstetrician
• Robert A. Barnes (1808–1892), businessman in St. Louis
• Robert Henry Barnes (1849–1916), British–New Zealand chess player
• Robert L. Barnes (born 1951), Canadian judge
• Bob Barnes (cartoonist) (1913–1970), cartoonist
• Bootsie Barnes (Robert Barnes, 1937–2020), jazz musician

Characters

• Staff Sgt. Bob Barnes, a character in Platoon
• Bob Barnes, George Clooney's character in the 2005 film Syriana

See also

• Bert Barnes (disambiguation)