Robert Arbuthnot
Robert Arbuthnot or Arbuthnott may refer to:
- Robert Arbuthnot, 1st Viscount of Arbuthnott
- Robert Arbuthnot, 2nd Viscount of Arbuthnott
- Robert Arbuthnot, 3rd Viscount of Arbuthnott
- Robert Arbuthnot (auditor), Auditor of the Exchequer in Scotland
- Robert Arbuthnot, 4th Viscount of Arbuthnott
- Keith Arbuthnott, 15th Viscount of Arbuthnott, British Army general
- Robert Arbuthnot of Haddo, trustee of Board of Manufactures
- Robert Arbuthnot (Ceylon), British soldier and diplomat
- Robert Arbuthnot (British [Army officer)], British Army general
- Sir Robert Arbuthnot, 2nd Baronet, Scottish civil servant
- Sir Robert Arbuthnot, 4th Baronet, British Royal Navy admiral
- Sir Robert Dalrymple Arbuthnot, 6th Baronet ; see Arbuthnot baronets