Arthur Saunders Gore, 3rd Earl of Arran (20 July 1761 – 20 January 1837), styled Viscount Sudley from 1773 to 1809, was an Irish peer and Tory Member of Parliament.

Arran was the eldest son of Arthur Saunders Gore, 2nd Earl of Arran, by his first wife the Hon. Catherine Annesley. In 1783, he was elected to the Irish House of Commons for Baltimore and Donegal Borough. He chose to sit for the first and represented the constituency until 1790. In 1800, he was returned for County Donegal until the Union with Great Britain took place at the end of the year. Subsequently, he sat then for County Donegal in the House of Commons of the United Kingdom to 1806. In 1809 he succeeded his father as third Earl of Arran, but as this was an Irish peerage it did not entitle him to a seat in the House of Lords of the United Kingdom.

Lord Arran married Mary Tyrell, daughter of Sir John Tyrell, 5th Baronet, in 1787. They had no children. He died in January 1837, aged 75, and was succeeded in his titles by his nephew Philip.

• Kidd, Charles, Williamson, David (editors). Debrett's Peerage and Baronetage (1990 edition). New York: St Martin's Press, 1990.
• Leigh Rayment's Peerage Pages ^{[self-published source] [better source needed]}
• Leigh Rayment's Historical List of MPs

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