Alexander Dundas Ross Cochrane-Wishart-Baillie, 1st Baron Lamington (24 November 1816 – 15 February 1890), better known as Alexander Baillie-Cochrane, was a British Conservative politician perhaps best known for his association with Young England in the early 1840s. The son of Admiral of the Fleet Sir Thomas John Cochrane, he succeeded to the Baillie estate at Lamington in 1833.