Gneist, Heinrich Rudolf (b. 1816), German jurist and historian, was born at Berlin. Till 1850 he held judicial posts, but after that time devoted himself chiefly to writing and teaching. In 1844 he became Professor of Jurisprudence at Berlin, and in 1858 a member of the Prussian Diet. He was afterwards also elected to the Reichstag. His chief works are The Constitution of Trial by Jury in Germany, The Administrative Law in England, and History of the English Parliament. He was political instructor of the Emperor William II., and in 1875 became Senior Judge of the Supreme Court of Prussia and a Privy Councillor. He died in 1895.