John Dundas

John Dundas may refer to:


 * John Dundas (1808–1866), 1st Earl of Zetland, Lord Lieutenant of Orkney and Shetland, MP for Richmond and York
 * John Dundas (1845–1892), Lord Lieutenant of Orkney and Shetland, MP for Richmond
 * John Dundas (RAF officer) (1915–1940), World War II fighter ace