Earl of Mornington

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Earldom of Mornington
Creation date	1760
Created by	George II
Peerage	Peerage of Ireland
First holder	Garret Wesley, 1st Earl of Mornington
Present holder	Charles Wellesley, 9th Duke of Wellington
Heir apparent	Arthur Wellesley, Earl of Mornington
Remainder to	the 1st Earl's heirs male of the body lawfully begotten
Subsidiary titles	Viscount Wellesley of Dangan Castle, in the County of Meath
Status	Subsidiary title of the Duke of Wellington
Seat(s)	Stratfield Saye House
Former seat(s)	Dangan Castle

Earl of Mornington is a title in the Peerage of Ireland. It was created in 1760 for the Anglo-Irish politician and composer Garret Wellesley, 2nd Baron Mornington. On the death of the fifth earl in 1863, it passed to the Duke of Wellington; since that date, the title has generally been used by courtesy for the heir apparent to the heir apparent to the dukedom.