Henry Howard Molyneux Herbert, 4th Earl of Carnarvon (24 June, 1831 - 29 June, 1890), was an English politician and a leading member of the Conservative Party.
Herbert became the Earl of Carnarvon on the death of his father in 1849. After taking his degree at Oxford, he began to play a prominent role in the House of Lords. In 1858, he was under secretary for the colonies, and in 1866 secretary of state. In 1867 he introduced the British North America Act, which conferred self-government on Canada. Later that year, he resigned over Benjamin Disraeli's Reform Bill, along with Lord Cranborne.
Resuming office in 1874, he endeavoured to confer self-government on South Africa as he had on Canada, but the times were not ripe. In 1878 he resigned in opposition to Lord Beaconsfield's policy on the Eastern Question; but on his party's return to power in 1885 he became Lord Lieutenant of Ireland. His short period of office, memorable for a conflict on a question of personal veracity between himself and Charles Stewart Parnell as to his negotiations with the latter in respect of Home Rule, was terminated by another premature resignation. He never returned to office.
As a statesman his career was marred by extreme sensitiveness; but he was beloved as a man of worth and admired as a man of culture. He was high steward of Oxford University, and president of the Society of Antiquaries.
| Preceded by: Edward Cardwell | Secretary of State for the Colonies 1866-1867 | Followed by: The Duke of Buckingham and Chandos |
| Preceded by: The Earl of Kimberley | Secretary of State for the Colonies 1874-1878 | Followed by: Sir Michael Hicks-Beach |
| Preceded by: The Earl Spencer | Lord Lieutenant of Ireland 1885-1886 | Followed by: The Earl of Aberdeen |
| Preceded by: Henry Herbert | Earl of Carnarvon | Followed by: George Herbert |