John Lemon (6 November 1754 – 5 April 1814) was a British Whig Member of Parliament.

He was born in Truro, the second son of William Lemon by his marriage to Anne, the daughter of John Willyams of Carnanton House, and was the grandson of William Lemon the Elder (1696–1760), who had acquired a substantial estate at Carclew in 1749, and the younger brother of Sir William Lemon, 1st Baronet.

[1][2][3] The young John Lemon was educated at Truro Grammar School[4] and later at Harrow.

[6] In 1784 he was elected to the House of Commons for West Looe, a seat he held only briefly.

[5] On 17 January 1804 Lemon was appointed as one of the Lords Commissioners of the Admiralty, serving for only a month.