Robert Pflug (Latvian: Roberts Pflūgs; 1 May 1832 – 30 November 1885) was a Baltic German architect.
Robert August Pflug was born in Saint Petersburg as the son of a merchant.
He studied at the Technological Institute in Saint Petersburg between 1846 and 1850 and thereafter at the Imperial Academy of Arts.
In 1860 he went on a study trip to Germany and Italy.
[1] Among the buildings designed by Pflug in Riga, the Nativity Cathedral, the House of the Livonian Noble Corporation (designed together with Jānis Frīdrihs Baumanis and Otto von Sievers; today the Latvian parliament, the Saeima) and the Haus Szczytt - House of Justynian Niemirowicz-Szczytt (1814-1894)[2][3] - the building of the present-day Finnish embassy can be mentioned.