Thorolf Holmboe (10 May 1866 – 8 March 1935) was a Norwegian painter, illustrator and designer.
He was born in Vefsn Municipality in Nordland county, Norway, as the oldest son of Othar Ervigius Holmboe and his wife Sofie Birgitte Andrea Hall.
He was inspired by many different styles at different points in his career, including Naturalism, Neo-romanticism, Realism and Impressionism.
He was awarded the Petter Dass-medaljen by Nordlendingenes Forening in Oslo during the association's 50th anniversary in 1912.
Nordlendingenes Forening is an association of former residents who had relocated from the counties of Nordland, Troms and Finnmark in Northern Norway.