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Born June 7, 1890, in Oslo. Norwegian polar explorer and military aviator.
In 1926, Riiser-Larsen piloted R. Amundsen’s dirigible Norge, which, traveling across the pole, was the first to traverse the Arctic Ocean. As the head of two antarctic expeditions on the ship Norvegia, Riiser-Larsen, with the aviator F. Lützow-Holm, made an aerial survey of Enderby Land in 1929–30, discovered Prince Olav Coast, and explored Princess Martha Coast. In 1930-31, Riiser-Larsen sailed around Antarctica. During a flight to the south he discovered Princess Ragnhild Coast. A sea, a shelf glacier, and a peninsula in Antarctica are named after Riiser-Larsen.