Ernst Moritz Arndt was a German nationalist historian, writer and poet. Early in his life, he fought for the abolition of serfdom, later against Napoleonic dominance over Germany. Arndt had to flee to Sweden for some time due to his anti-French positions. He is one of the main founders of German nationalism during the Napoleonic wars and the 19th century movement for German unification. After the Carlsbad Decrees, the forces of the restoration counted him as a demagogue.

Ernst Rifgatovich Muldashev, Russian surgeon ophthalmologist, general director of the All-Russian Center for Ophthalmic and Plastic Surgery in the city of Ufa, author of esoteric books.

Ernst Nolte was a German historian and philosopher. Nolte's major interest was the comparative studies of fascism and communism. Originally trained in philosophy, he was professor emeritus of modern history at the Free University of Berlin, where he taught from 1973 until his 1991 retirement. He was previously a professor at the University of Marburg from 1965 to 1973. He was best known for his seminal work Fascism in Its Epoch, which received widespread acclaim when it was published in 1963. Nolte was a prominent conservative academic from the early 1960s and was involved in many controversies related to the interpretation of the history of fascism and communism, including the Historikerstreit in the late 1980s. In later years, Nolte focused on Islamism and "Islamic fascism".

Ernst Ortlepp (August 1, 1800 - June 14, 1864) was a German poet.

Ernst Ottwalt was the pen name of German writer and playwright Ernst Gottwalt Nicolas. A communist, he fled Nazi Germany in 1934 and went into exile in the Soviet Union, where he fell victim to the Great Purge and died in a Soviet gulag. Later, when the Allies of World War II prosecuted Nazi war criminals in the Nuremberg Trials, the chief prosecutor from the Soviet Union quoted from an anti-Nazi book by Ottwalt.

Ernst Peter Fischer is a German historian of science and publicist.

Ernst Philipp Karl Lange was a German novelist who wrote under the pseudonym Philipp Galen.

Ernst Benjamin Salomo Raupach was a German dramatist.

Ernst Rudolf von Trautvetter, was a Baltic German botanist, specialising in the flora of the Caucasus and central Asia.

Ernst Särgava was an Estonian writer, playwright and politician.