Sir Robert Alexander Ferguson, 2nd Baronet (26 December 1795 –13 March 1860) was a Whig and then Liberal Party politician from Ireland. Ferguson was born in Derry in 1796 as son of (1761–1808), a banker and mayor of Derry from 1796 to 1798, and Elizabeth, daughter of the Derry merchant Robert Alexander of Broom Hall, who was the brother of the first James Alexander, 1st Earl of Caledon. Ferguson succeeded to the baronetcy in July 1808, after his father was killed in accident on a bridge in Moville, County Donegal. Ferguson was educated at Trinity College, Cambridge where he graduated MA in 1817. He was Colonel of the County Militia and Lord Lieutenant of County Londonderry from 1840 to 1860. He lived at The Farm, County Londonderry.