Cecilie Skog (born August 9, 1974) is a Norwegian adventurer from Ålesund. She studied and worked as a nurse, but since summiting Mount Everest in 2004, she has worked as a professional adventurer, guide and lecturer.
In August 2008, she climbed K2. Her husband Rolf Bae, who had been climbing with her on K2 on August 1, 2008, perished during the descent, as did 10 other mountaineers.
In January 2010, she finished the first unassisted and unsupported crossing of Antarctica ever. Together with Ryan Waters she took 70 days, from November 13, 2009 to January 21, 2010, to complete the more than 1800 km long journey across the Antarctic continent.