Roald Morel Larsen (1 February 1898 – 28 July 1959) was a World Champion speed skater from Norway. He was born in Kristiania (now Oslo).Roald Larsen's parents were Hans Jacob Larsen, a glazier born in Kristiania in 1870, and Lydia Larsen, born in Porsgrunn in 1865. They had four children, all sons: Jaan Harald (1891), Lyder Ragnar (1895), Roald Morel (1898), and Gelgjermo Stone (1899).
Representing Kristiania Skøiteklub (now Oslo Skøiteklub), Larsen had his best year in 1924, when he became World Allround, European Allround, and Norwegian Allround Champion, in addition to winning two silver and three bronze medals at the 1924 Winter Olympics of Chamonix. One of those Olympic silver medals was on the allround event, a combination of the results of the 500 m, the 1500 m, the 5000 m, and the 10000 m – the only time in Olympic history that there was an allround event. Larsen won several more medals in the years that followed, including another bronze medal at the 1928 Winter Olympics of St. Moritz.