Henry Cadogan (disambiguation)

Henry Cadogan may refer to:


 * Henry Cadogan (1642–1713/14), Anglo-Irish lawyer, father of the first Earl Cadogan
 * Henry Cadogan, 4th Earl Cadogan (1812–1873), styled Viscount Chelsea between 1820 and 1864, British diplomat and politician
 * Henry Cadogan, Viscount Chelsea (1868–1908), British politician
 * Henry Cadogan (British Army officer) (1780–1813) who fell leading British troops at the Battle of Vittoria