Eduard Hau (Russian: Эдуард Петрович Гау; 28 July 1807 in Reval – 3 January 1888 in Dorpat) was a Baltic German painter and graphic artist.^[1]

He was the son of painter Johannes Hau, who had emigrated from Northern Germany in 1795, and he grew up in the German community of Tallinn ("Reval" in German). His half-brother was the painter Woldemar Hau. From 1830 to 1832, he studied at the Dresden Academy of Fine Arts.

From 1836 to 1839, he lived in Tartu ("Dorpat"), where he also spent the last years of his life. In between, he apparently lived in Saint Petersburg, where he produced numerous interior portraits of rooms in the Winter Palace, the Peterhof Palace and other Royal residences. He was on the membership list at the Imperial Academy of Arts in 1854,^[1] and probably remained in Russia until c.1880.

The Gatchina Palace was burned by German troops during World War II. When it was rebuilt, the interior was restored using Hau's paintings as a guide.

Outside of Russia, he is primarily known for his portraits of the Professors at the University of Dorpat. They appeared from 1837 to 1839 and were distributed in a series of lithographs, in six issues, by the firm of Georg Friedrich Schlater. The portrait subjects included Friedrich Karl Hermann Kruse, Nikolay Pirogov and Friedrich Georg Wilhelm Struve.^[2] He also produced well-known portraits of Friedrich Robert Faehlmann (1837, lithograph) and Johann Carl Simon Morgenstern (1838, oil painting).

• Moritz von Jacobi
• Wilhelm Struve
• Friedrich Kruse
• Friedrich von Bunge

• The Study of Empress Maria Alexandrovna
• The Boudoir of Empress Maria Alexandrovna
• The Billiard Room of Emperor Alexander II
• Cathedral