Slingsby Bethell

{{Short description|English Member of Parliament and Lord Mayor of London}}

{{for|Slingsby Bethel (1617–1697) MP for Knaresborough in 1659|Slingsby Bethel}}

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Slingsby Bethell (1695–1758) of Tower Hill, London was an English Member of Parliament and Lord Mayor of London.{{cite web|url=https://www.historyofparliamentonline.org/volume/1715-1754/member/bethell-slingsby-1695-1758|title=BETHELL, Slingsby (1695-1758), of Tower Hill, London.|publisher=History of Parliament Trust|accessdate= 12 November 2018}}

He was the third son of William Bethell of Swinden, Yorkshire and the younger brother of Hugh Bethell. In his early life he bought a plantation in Antigua and returned to work in London as a well-to-do merchant involved in the Africa trade.

He was a member of the Fishmongers’ Company from 1749 to his death, an alderman of London in 1749, Sheriff of the City of London for 1751–52, and Lord Mayor of London for 1755–56. He was Member of Parliament for the City of London from 1747 to November 1758.

He died unmarried in 1758.