The Hon. John Charles Dundas (21 September 1845 – 13 September 1892), was a British Liberal politician.

Dundas was a younger son of the Hon. John Dundas, younger son of Lawrence Dundas, 1st Earl of Zetland. His mother was Margaret Matilda, daughter of James Talbot, while Lawrence Dundas, 1st Marquess of Zetland, was his elder brother. When his elder brother succeeded in the earldom of Zetland in 1873, Dundas was granted the rank of a younger son of an earl, and thus styled the Honourable John Dundas.

Dundas was returned to Parliament for Richmond, Yorkshire, in 1873 (succeeding his elder brother), a seat he held until 1885. He was also Lord Lieutenant of Orkney and Shetland between 1872 and 1892.

Dundas married the Hon. Alice Louisa, daughter of Charles Wood, 1st Viscount Halifax, in 1870. He died in September 1892, aged 46. His wife survived him by over 40 years and died in June 1934.

• Leigh Rayment's Historical List of MPs

• Hansard 1803–2005: contributions in Parliament by John Dundas