Joshua Vanneck, 1st Baron Huntingfield (31 December 1745 – 15 August 1816), known as Sir Joshua Vanneck, 3rd Baronet, from 1791 to 1796, was a British merchant and Member of Parliament.
Huntingfield was the second son of the London merchant Sir Joshua Vanneck, 1st Baronet, and Mary Anne Daubuz. The family was of Dutch origin. He was educated at Eton and then became a merchant in London like his father. In 1790 he succeeded his elder brother as Member of Parliament for Dunwich, a seat he held until 1816, and in 1791 he also succeeded him as third Baronet. In 1796 he was raised to the Peerage of Ireland as Baron Huntingfield, of Heveningham Hall in the County of Suffolk.
Lord Huntingfield married Maria Thompson, daughter of Andrew Thompson, in 1777. He died in August 1816, aged 70, and was succeeded in his titles by his eldest son Joshua.