Robert Dundas may refer to:
- Robert Dundas, Lord Arniston (1650–1726), Scottish judge and politician
- Robert Dundas of Arniston, the Elder (1685–1753), his son, Scottish judge
- Robert Dundas of Arniston, the younger (1713–1787), Scottish judge
- Robert Dundas of Arniston (1758–1819), Scottish judge
- Sir Robert Dundas, 1st Baronet (1761–1835), Scottish landowner and lawyer
- Robert Dundas, 2nd Viscount Melville (1771–1851), Scottish nobleman
- Robert Dundas, 4th Viscount Melville, Scottish nobleman
- Robert Nisbet-Hamilton, born Robert Dundas
- Sir Robert Lawrence Dundas (1780–1844), British Army officer and politician
- Robert Dundas, 9th Viscount Melville (1937–2011), British Army officer
This disambiguation page lists articles about people with the same name.
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