Knut Lindstrøm Rumohr (21 December 1916 – 31 October 2002) was a Norwegian painter and printmaker.
Rumohr was born at Frønningen in Leikanger (now Lærdal) in Sogn og Fjordane, Norway.
He was raised at Frønningen Manor (Frønningen-godset), an historic estate which was owned by his family.
He trained at the Norwegian National Academy of Fine Arts in Oslo under Per Krohg and Olaf Willums from 1935 to 1941 and under Jean Heiberg and Georg Jacobsen from 1938 to 1941.
He utilized travel grants to continue his studies in Sweden and Denmark during 1946 as well as France and Italy from 1947 to 1949.