Rolf Kristian Eckersberg Stenersen (13 February 1899 – 15 October 1978) was a Norwegian track and field athlete, businessman, art collector, non-fiction writer, essayist, novelist, playwright and biographer.
Stenersen was born in Kristiania as the son of bookseller Johan Martin Stenersen and Martha Kathrine Eckersberg. He was married to Inger Johanne Martinsen from 1924. He died in Bergen in 1978.
He was a Norwegian champion in 200 metres in 1919 and 1920, and in 4 x 100 metres relay in 1920. He participated at the 1920 Summer Olympics in Antwerp, where he competed in 100 metres, 200 metres and 4 x 100 metres relay.
He was active on the already as a teenager. He graduated from Kristiania Commerce School in 1918, and studied at Queen's College, Oxford from 1922 to 1924. From 1925 he was running his own business, A/S Stenersen og Waage, which operated in the rubber business and the Dutch stock market.
He was a friend of painter Edvard Munch from the 1920s, came to be Munch's financial advisor. He was also a collector of his art work, and had one of the largest private collections of Munch's works. In 1926 he organized an exhibition of his art collection, which centered around works by Munch and Ludvig Karsten. He wrote essays on artists such as Edvard Munch, Erik Harry Johannessen, Jakob Weidemann and Paul Klee. He published books on economy, including Penger og tall from 1937. His début as a fiction writer was the short story collection Godnatt da du from 1931.