Richard FitzWilliam, 3rd Viscount FitzWilliam (1745-1816), was a British nobleman and politician. He inherited the title of Viscount FitzWilliam from his father in 1816. FitzWilliam was known for his contributions to the arts and his involvement in various charitable activities. He served as a Member of Parliament for Yorkshire and was a prominent figure in the Whig Party. FitzWilliam was also a patron of the arts, supporting artists and musicians during his lifetime. His legacy includes the Fitzwilliam Museum in Cambridge, which houses a significant collection of art and antiquities.