Frederik Ferdinand Friis (16 December 1793 – 18 March 1865) was a Danish architect, professor and Royal Building Inspector.

Frederik Ferdinand Friis was born in Copenhagen on 16 December 1793 to master builder and fountain master Peder Friis and Henriette Johanne née West.

He was articled to Peder Malling from 1822 to 1827 where he was responsible for the construction of the new main building for Sorø Academy after the old one had been destroyed in a fire.

Friis interviewed Thorvaldsen about several details regarding his life and oeuvre and reported back to Thiele in Copenhagen.

[1] After his return to Denmark in 1831, Friis was appointed Royal Building Inspector of Zealand and in 1850 for Copenhagen, Frederiksborg, Holbæk and Bornholm counties.