Lord Sidney Beauclerk PC (27 February 1703 – 23 November 1744) was a British politician who sat in the House of Commons from 1733 to 1744.
Beauclerk stood unsuccessfully for Parliament in a contest at Marlow at a by-election in 1732 on the interest of Edmund Waller.
He was returned as Member of Parliament for Windsor at a by-election on 16 May 1733, joining his brother Lord Vere Beauclerk.
He was returned again at Windsor at the 1741 British general election, but lost his place at Court on the fall of Walpole in 1742.
[1] He married Diana, Viscountess Bolingbroke and St John (née Spencer) and lived at Speke Hall.