Lionel Tollemache, 3rd Earl of Dysart (30 January 1649 – 23 February 1727), styled Lord Huntingtower from 1651 to 1698, was a British Tory politician and peer.

A Member of Parliament at Westminster, he inherited Scottish peerages and was briefly Lord Lieutenant of Suffolk from 1703 to 1705.

[2] Educated at Queens' College, Cambridge, Lionel succeeded to his father's baronetcy on his death,[3] and to some property in Suffolk, but also a raft of debts which bred in him a habit of frugality which was not shed in later years.

In that year, he succeeded his mother to become Earl of Dysart, making him a member of the Parliament of Scotland, but did not take his seat there.

His support for the "Tack" of the Occasional Conformity Bill led to his removal from his county offices in April 1705.