The son of Daniel Giles of the Bank of England, he was educated at Hertford College, Oxford and Lincoln's Inn; he was a Whig MP for East Grinstead (1802-07) and St. Albans (1809-12). He was a political acquaintance of William Lamb.

CORRESPONDENCE OF Daniel Giles:

Lady Melbourne to Daniel Giles, MP, September 1811 in In Whig Society 1775-1818: Compiled from the hitherto unpublished Correspondence of Elizabeth, Viscountess Melbourne, and Emily Lamb, Countess Cowper, afterwards Viscountess Palmerston (London: Hodder and Stoughton LTD., 1921)

Daniel Giles, MP to Lady Melbourne, 11 September 1811 in In Whig Society 1775-1818: Compiled from the hitherto unpublished Correspondence of Elizabeth, Viscountess Melbourne, and Emily Lamb, Countess Cowper, afterwards Viscountess Palmerston (London: Hodder and Stoughton LTD., 1921)