Henry Cavendish (disambiguation)

Henry Cavendish (1731–1810) was a British scientist who discovered hydrogen.

Henry Cavendish may also refer to:
 * Sir Henry Cavendish (politician) (1550–1616), MP for Derbyshire and libertine
 * Henry Cavendish, 2nd Duke of Newcastle (1630–1691), earlier styled Viscount Mansfield
 * Henry Cavendish, Earl of Ogle (1659–1680), British aristocrat
 * Lord Henry Cavendish (1673–1700), MP for Derby 1695–1700
 * Sir Henry Cavendish, 1st Baronet (1707–1776), British politician
 * Sir Henry Cavendish, 2nd Baronet (1732–1804), Irish politician, also MP for Lostwithiel 1768–74
 * Henry Cavendish (British Army officer) (1789–1873), courtier, earlier MP for Derby 1812–35
 * Henry Cavendish, 3rd Baron Waterpark (1793–1863), Whig MP for Knaresborough, Derbyshire South, and Lichfield
 * Henry Cavendish, 4th Baron Waterpark (1839–1912), British aristocrat and sportsman
 * Lord Henry Cavendish-Bentinck (1863–1931), MP for Norfolk North-West and Nottingham South