| Honorific-Prefix: | The Right Honourable |
| The Viscount Hereford | |
| Honorific-Suffix: | PC |
| Office1: | Captain of the Honourable Corps of Gentlemen-at-Arms |
| Term Start1: | 1827 |
| Term End1: | 24 November 1830 |
| Predecessor1: | The Earl of Courtown |
| Successor1: | The 3rd Lord Foley |
| Term Start2: | 29 December 1834 |
| Term End2: | 8 April 1835 |
| Monarch2: | William IV |
| Primeminister2: | Sir Robert Peel, Bt |
| Predecessor2: | The 4th Lord Foley |
| Successor2: | The 4th Lord Foley |
| Birth Date: | 9 February 1777 |
| Nationality: | British |
| Party: | Tory |
| Spouse: | Frances Cornewall (d. 1864) |
Henry Fleming Lea Devereux, 14th Viscount Hereford PC (9 February 1777 – 31 May 1843) was a British Tory politician. He served as Captain of the Honourable Corps of Gentlemen-at-Arms between 1827 and 1830 and again between 1834 and 1835.
Devereux was the son of George Devereux, 13th Viscount Hereford, and Marianna Devereux. His maternal grandfather was George Deveraux, of Tregoyd, a distant relation to the line of his father. He was educated at Winchester and Trinity College, Oxford.[1]
Devereux succeeded his father in the viscountcy in 1804 and took his seat on the Tory benches in the House of Lords. In 1827 he was appointed Captain of the Honourable Band of Gentlemen Pensioners under Lord Goderich, a post he held until 1830, the last two years under the premiership of the Duke of Wellington. He held the same office (in 1834 renamed Captain of the Honourable Corps of Gentlemen-at-Arms) from 1834 to 1835 under Sir Robert Peel. In 1830 he was admitted to the Privy Council.
Lord Hereford married Frances Elizabeth Cornewall, daughter of Sir George Cornewall, 2nd Baronet and Catherine Cornewall, on 12 December 1805. They had six children:
Lord Hereford died in May 1843, aged 67, and was succeeded in the viscountcy by his eldest surviving son, son Robert. The Viscountess Hereford died in February 1864.[1]