James Milnes Gaskell (19 October 1810 – 5 February 1873) was a British Conservative politician.
James Milnes-Gaskell was the only child of Benjamin Gaskell (1781–1856) of Thornes House, Wakefield, West Yorkshire and Clifton Hall, Lancashire. He was born on 19 October 1810 and was educated at Eton College and Christ Church, Oxford. His political interest may have been influenced by meeting lifelong friend William Ewart Gladstone as a school contemporary, and receiving visits during term from George Canning. An uncle, Daniel Gaskell, also entered Parliament as first M.P. for Wakefield in 1832, at same general election as James.
In 1832 he married Mary Wynn, daughter of the Rt Hon. Charles Williams-Wynn, (also a Member of Parliament) and they had two sons and two daughters. One son, Charles Milnes Gaskell, also became a Member of Parliament, as a Liberal.
- Weyman, Henry T. (1902). "Members of Parliament for Wenlock". Transactions of the Shropshire Archaeological Society, Third Series, Volume II. pp. 353–354.
- Burke's Landed Gentry, 1937. Burke's Peerage Ltd. p. 869.
- Gamble, Cynthia (2015). Wenlock Abbey 1857-1919: A Shropshire Country House and the Milnes Gaskell Family. Ellingham Press. ISBN 978-0993007316.
- "Death of J. Milnes Gaskell, Esq". Shrewsbury Chronicle. 14 February 1873. p. 6.