Olaf Swenson ( December 16, 1883 – August 23, 1938) was a Seattle-based fur trader and adventurer active in Siberia and Alaska in the first third of the 20th century. His career intersected with activities of notable explorers of the period, and with the Russian Civil War. He is credited with leading the rescue of the Karluk survivors from Wrangel Island in 1914. According to historian Thomas C. Owen, Swenson's "practicality and zest for adventure made him an ideal entrepreneur on the arctic frontier..."