Robert Campbell Scarlett, 2nd Baron Abinger DL (5 September 1794 – 24 June 1861), was a British barrister-at-law and politician.

Born in London, he was the oldest son of James Scarlett, 1st Baron Abinger, and his first wife, third daughter of Peter Campbell.^[1] In 1844, he succeeded his father as baron. Scarlett was educated at Trinity College, Cambridge, where he graduated with a Bachelor of Arts in 1815, and a Master of Arts three years later, when he was called to the bar by the Inner Temple.^[2]

In 1837, Lord Abinger was the presiding exchequer judge in the case of Priestley v Fowler which introduced the now abandoned legal rule of common employment.^[3]

In 1835, he entered the British House of Commons, representing Norwich until 1838.^[4] He sat again for Horsham from 1841 until 1844, when his father died.^[5] Scarlett was appointed Deputy Lieutenant of Inverness-shire in 1854.^[1]

He married Sarah Smith, second daughter of George Smith, Chief Justice of Mauritius, in 1824, and they had at least one son, William, who succeeded his father as third Baron.