Peter Andreas Blix (4 November 1831 – 31 January 1901) was a Norwegian architect and engineer best known for designing railway stations and villas in Swiss chalet style.

He was the eldest son of auditor John Gill Blix (1797–1874) and his wife Anna Dobberdine Randulff (1804–37).

At Oslo Cathedral School (Christiania Katedralskole) – where Blix later took his matric, one could note the contention between the classicists (pro-Latin) and the realists (pro-Norwegian).

A few years earlier, professor and architect Conrad Wilhelm Hase installed several reforms at the university, that Blix and other students took advantage of.

[5] Blix became very influenced by Hase's Neo-Gothic architectural style, which he would later use on railway stations and churches in Norway.

[7] When he returned from Germany, he was employed by Norwegian Water Resources and Energy Directorate (Kanalvæsenet), where he researched the possibility of a canal in Tyrifjorden.