The Earl of Mansfield and Mansfield is a peer in the Peerage of Great Britain, holding two separate creations of the title of Earl of Mansfield in that peerage, the first created in 1776 and the second in 1792.

Both creations were in favour of William Murray, 1st Baron Mansfield (who had been raised to the peerage in 1756 on his appointment as Lord Chief Justice) but had, under the letters patent creating them, different descents. The creation of 1776 passed to his nephew's wife Louisa, while the creation of 1792 went to the first Earl's nephew William. Eventually, however, the two titles came to be united under a single holder.

The Earl holds the subsidiary titles of Viscount of Stormont (1621) and Lord Scone and Balvaird (1605) in the Peerage of Scotland.

Earls of Mansfield, First Creation (1776)

• William Murray, 1st Earl of Mansfield and Mansfield, 1st Baron Mansfield (1705-1793)
• Louisa Murray, 2nd Countess of Mansfield (1758_1843)
• William David Murray, 4th Earl of Mansfield and Mansfield (1806-1898)
• William David Murray, 5th Earl of Mansfield and Mansfield (1860-1906)
• Alan David Murray, 6th Earl of Mansfield and Mansfield (1864-1935)
• Mungo David Malcolm Murray, 7th Earl of Mansfield and Mansfield (1900-1971)
• William David Mungo James Murray, 8th Earl of Mansfield and Mansfield (b. 1930)

Earls of Mansfield, Second Creation (1792)

• William Murray, 1st Earl of Mansfield and Mansfield (1705-1793)
• David Murray, 2nd Earl of Mansfield (1727-1796)
• David William Murray, 3rd Earl of Mansfield (1777-1840)
• William David Murray, 4th Earl of Mansfield (1806-1898) (became Earl of Mansfield in 1843)