Karl Erik Harr (born 8 May 1940) is a Norwegian painter, illustrator, graphic artist and author, best known for his representations of Northern-Norwegian scenery and coastal history. From 1972 to 1975, Erik was married to Turi Widerøe, the first female pilot for a major airline in the western world.
Harr was born in Kvæfjord Municipality in Troms and studied at the Oslo National Academy of the Arts. He is the brother of Eva Harr and .
Since his debut at Statens kunstutstilling during 1967, his works have been presented at numerous exclusive and collective exhibitions. Harr has illustrated the works of Knut Hamsun. He designed the indoor decorations for the Hurtigruten Coastal Express steamship Richard With.
He was awarded the knighthood of the first class of the St. Olavs order in 2001 by his majesty the king of Norway for outstanding work towards the arts in Norway.