Harald Kaas (19 May 1868 – 1950s) was a Norwegian architect.
Born in Oslo, he studied at the Norwegian National Academy of Craft and Art Industry, then at Baugewerkschule in Eckernförde and finally at Polytechnicum in Munich.[1][2] He was employed by the Norwegian State Railways from 1908 to 1914, and designed stations on the Arendal, Bergen and Solør Line for the company.[3] Kaas died in the 1950s and was cremated on 29 January 1955.[4][3]