The Hon. John Charles Dundas (21 August 1808 – 14 February 1866) was a British Whig, and later Liberal politician.

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Dundas was a younger son of Lawrence Dundas, 1st Earl of Zetland, and Harriot (née Hale). Thomas Dundas, 2nd Earl of Zetland, was his elder brother.

Dundas entered Parliament for Richmond, Yorkshire, in 1830, a seat he held until 1835, and again between 1841 and 1847 and 1865 and 1866. He also represented York from 1835 to 1837.

Dundas married Margaret Matilda, daughter of James Talbot and Mary (née Sutton), in 1843. His eldest son Lawrence succeeded in the earldom of Zetland in 1873 and was created Marquess of Zetland in 1892. His second son John was a politician. Dundas died in Nice, in February 1866, aged 57.^[1] His wife survived him by over 40 years and died in December 1907.