Henry Richard Vassall-Fox, 3rd Baron Holland, was an English politician and a major figure in Whig politics in the early nineteenth century. A grandson of Henry Fox, 1st Baron Holland, and nephew of Charles James Fox, he served as Lord Privy Seal (1806-1807) and as Chancellor of the Duchy of Lancaster (1830-1840) in the Whig administrations of Lord Grey and Lord Melbourne.
Baron Holland's protests against the measures of the Tory ministers were collected and published, as the Opinions of Lord Holland (1841), by Dr Moylan. Another publication, Lord Holland's Foreign Reminiscences (1850) contains much amusing gossip from the Revolutionary and Napoleonic era. His Memoirs of the Whig Party (1852), however, is regarded as an important authority on that period. He also published a small work on Lope de Vega (1806), and has been credited by some sources as having contributed to the fictional novel An Account of an Expedition to the Interior of New Holland (1837).