Robert Dundas

Robert Dundas may refer to:
 * Robert Dundas (died 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