Aksel Lydersen (22 February 1919 – 1 September 1995) was a Norwegian engineer and professor in chemical engineering at the Norwegian Institute of Technology (Norwegian: Norges tekniske høgskole, NTH).[1] He was also active in the Norwegian language conflict (målstriden, språkstriden or sprogstriden) and was leader of the Riksmål Society in Norway 1969 to 1974.[2]