Sportsmen
- Robert Hamilton (footballer) (1877–1948), Scottish footballer often known as R.C. Hamilton
- Robert Hamilton (Irish footballer) (1907–1964), Northern Irish footballer who played for Rangers F.C.
- Bob "Bones" Hamilton (1912–1996), American football player
- Bob Hamilton (1916–1990), American professional golfer
- Bobby Hamilton (1957–2007), driver
- Bobby Hamilton (American football) (born 1971), American football defensive end
- Bobby Hamilton, Jr. (born 1978), driver
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