Lionel Tollemache, 4th Earl of Dysart, KT (1 May 1708 – 10 March 1770), styled Lord Huntingtower from 1712 to 1727, was an English peer and landowner.

[1] He was apparently very parsimonious towards his eldest son, who married Charlotte Walpole in 1760 without his father's knowledge.

[11][12] Grace, Lady Dysart, died at the Earl's new house in New Burlington Street, St James's.

He was succeeded as earl by his eldest son, Lionel who erected no memorial to either parent and left no legitimate children.

[2] The funerary hatchments of the Earl and Countess are now in St Andrew's Church, Ham.