Mogens Koch (2 March 1898 – 16 September 1992) was a Danish architect and furniture designer and, from 1950 to 1968, a professor at the Royal Danish Academy of Fine Arts. He was married to the weaver Ea Koch. Mogens Koch was born on 2 March 1898 in the Frederiksberg district of Copenhagen. He attended the Royal Danish Academy of Fine Arts in Copenhagen, and between 1925 and 1932 worked for Carl Petersen, Ivar Bentsen and Kaare Klint, where he was trained in the Danish functional tradition.
Koch primarily worked with church restorations, for example as an architect for Roskilde Cathedral (1950-1971) and with the design and decoration of the Danish Church in London. His architectural works also include an extension of Royal Veterinary and Agricultural College in Frederiksberg together with Steen Eiler Rasmussen carried out between 1945 and 1968. As a furniture designer Mogens Koch is known for the Folding Chair (1932), the Wing Chair No. 50 and the Armchair No. 51 in mahogony and leather (1936) and the Book Case (1928).