Peter Christoph Hagemann (20 March 1810 – 22 August 1853), often referred to as P. C. Hagemann was a Neoclassical Danish architect who worked in Copenhagen.
Hagemann was born in Itzehoe in 1810, the son of mason Johann Christoph Hagemann and his wife Catharina Lahann.
He first trained as a mason before studying at the Royal Danish Academy of Fine Arts whose large silver medal he won in 1842.
Hagemann soon attracted many assignments, both from the city and from private clients.
He was also charged with the design of a complex of market stalls for the butchers at Nikolaj Plads (1845–46), the first large iron structure in Denmark.