Wilbraham Tollemache, 6th Earl of Dysart, FRS (21 October 1739 – 9 March 1821) was a British military officer, politician and peer who sat in the House of Commons from 1771 to 1784.

He originally served in the Royal Navy, and then in the British Army, retiring in 1775 as a major in the 6th Regiment of Foot.

[5] The historian Evelyn Pritctard describes him as "a different character from the three previous earls – cultivated, humane, generous, with polished manners, treating his dependents and servants extremely well".

The Tollemache baronetcy, therefore, became extinct, while the Earldom of Dysart passed to his sister Lady Louisa Manners.

The estates were divided between Louisa and her younger sister, Lady Jane Halliday, with Jane receiving Helmingham, Suffolk, Cheshire and Northants, whilst Louisa inherited Ham House and the surrounding estates in Ham, Petersham and Canbury.