Robert Maxwell, 1st Earl of Farnham PC (c. 1720 – 16 November 1779), styled The Honourable Robert Maxwell from 1756 to 1759, was an Irish peer and a Member of both the Parliament of Great Britain and the Parliament of Ireland.
Farnham was elected to the Irish House of Commons for Lisburn in 1743, a seat he held until 1759.
Crossing to England he also became Member of Parliament for Taunton at a ruinously expensive by-election in 1754, his father putting up £3,000[1] which had to be more than matched from the government's "secret service" funds to secure his election.
He afterwards described the campaign, in a letter to Lord George Sackville, as "a great deal of smoaking, some drinking, and kissing some hundreds of women; but it was to good purpose...
On his death the earldom and the viscountcy titles became extinct, whilst the barony passed to his brother, Barry Maxwell.