John Claudius Beresford (23 October 1766 – 20 July 1846) was an Irish Tory Member of the UK Parliament representing Dublin City 1801–1804 and County Waterford 1806–1811.

He kept a riding school in Dublin, which acquired an evil reputation as the chief scene of the floggings by which evidence was extorted from the United Irishmen.

He was to the last an ardent opponent of the union (taking the opposite position to his father); he resigned his post at the port on 25 January 1799 so as not to be tainted by it or by the suggestion that his actions were motivated by a desire to retain it.

Under a provision of the Act of Union 1800 he retained his seat in the 1st Parliament of the United Kingdom 1801–02 without a fresh election, and in the Union Parliament he was a supporter of William Pitt the younger and later Henry Addington; he had to give up his Irish business interests to play a full part in Parliamentary business.

After the death of his father on 5 November 1805 Beresford returned to Parliament by winning the by-election to replace him as MP for County Waterford (6 January 1806).

In June he resigned his seat through appointment as Escheator of Munster, being succeeded by his kinsman, Major General Sir William Carr Beresford.