Viscounts of Arbuthnott (1641)
- Robert Arbuthnot, 1st Viscount of Arbuthnott (d. 1655)
- Robert Arbuthnot, 2nd Viscount of Arbuthnott (d. 1682)
- Robert Arbuthnot, 3rd Viscount of Arbuthnott (1663–1694)
- Robert Arbuthnot, 4th Viscount of Arbuthnott (1686–1710)
- John Arbuthnot, 5th Viscount of Arbuthnott (1692–1756)
- John Arbuthnot, 6th Viscount of Arbuthnott (aka the Rich Lord). (1703–1791) Son of John Arbuthnot of Fordoun, brother of the 2nd Viscount. Father of 7th Viscount.
- John Arbuthnot, 7th Viscount of Arbuthnott (1754–1800) Challenged the legality of his late father's actions, which had included the granting of leases for long periods at low rents."
- John Arbuthnott, 8th Viscount of Arbuthnott (1778–1860)
- John Arbuthnott, 9th Viscount of Arbuthnott (1806–1891)
- John Arbuthnott, 10th Viscount of Arbuthnott (1843–1895)
- David Arbuthnott, 11th Viscount of Arbuthnott (1845–1914)
- William Arbuthnott, 12th Viscount of Arbuthnott (1849–1917)
- Walter Charles Warner Arbuthnott, 13th Viscount of Arbuthnott (1847–1920)
- John Ogilvy Arbuthnott, 14th Viscount of Arbuthnott (1882–1960)
- (Robert) Keith Arbuthnott, 15th Viscount of Arbuthnott (1897–1966)
- John Campbell Arbuthnott, KT, CBE, DSC, 16th Viscount of Arbuthnott (1924-2012)
- (John) Keith Oxley Arbuthnott, 17th Viscount of Arbuthnott (b. 1950)
His heir apparent is his son Christopher Keith Arbuthnott, Master of Arbuthnott (b. 1977)
The Master's heir apparent is his son Alexander Nicholas Keith Arbuthnott (b. 2007)
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