Duke of Wellington is a hereditary title and the senior Dukedom in the Peerage of the United Kingdom. First bestowed upon Arthur Wellesley, 1st Duke of Wellington (1769–1852), unqualified references to the Duke of Wellington almost always refer to him.
The full list of title holders is as follows:
- Arthur Wellesley, 1st Duke of Wellington (1769–1852)
- Arthur Richard Wellesley, 2nd Duke of Wellington (1807–1884)
- Henry Wellesley, 3rd Duke of Wellington (1846–1900)
- Arthur Charles Wellesley, 4th Duke of Wellington (1849–1934)
- Arthur Charles Wellesley, 5th Duke of Wellington (1876–1941)
- Henry Valerian George Wellesley, 6th Duke of Wellington (1912–1943)
- Gerald Wellesley, 7th Duke of Wellington (1885–1972)
- Arthur Valerian Wellesley, 8th Duke of Wellington (1915–2014)
- Charles Wellesley, 9th Duke of Wellington (b. 1945)