Carl Philipp Christian von Gontard (13 January 1731 in Mannheim – 23 September 1791 in Breslau) was a German architect who worked primarily in Berlin, Potsdam, and Bayreuth in the style of late Baroque Classicism.
After two years of study in Paris under Jacques-François Blondel and a lengthy sojourn in Italy he gained a reputation as a valued court architect to Wilhelmine of Prussia, Margravine of Brandenburg-Bayreuth.
Gontard's main works in Berlin include the colonnade portico and tower of the German and French churches on Gendarmenmarkt; two decorative colonnaded bridges across the former moat, a remnant of the city's 17th century fortifications, (in 1776 the Spittelkolonnaden on Leipziger Straße, and in 1777/1778 the Königskolonnaden, originally near Alexanderplatz but later relocated to Heinrich-von-Kleist-Park); the Oranienburg Gate (1787/88) historic drawing; and supervision of the construction of the Royal Library on today's Bebelplatz, which he furnished with a grand staircase and a formal hall for festivities.
Immediately after the death of Frederick the Great, his successor, Friedrich Wilhelm II, commissioned Gontard to decorate the Potsdam City Palace and Garrison Church for the funeral rites.
He had significant followers in G. C. Unger, F. W. Titel, and H. Gentz, but no long-lasting successors as his style did not survive the change in architectural taste that came with the end of Frederick the Great's era.