Chase Jay Nielsen (January 14, 1917 - March 23, 2007) was a career officer in the U.S. Air Force. He is notable as having participated in the Doolittle Raid in 1942 and being one of the four surviving prisoners of war from that raid. Born in Hyrum, Utah, Nielsen attended Utah State University and graduated in 1939 with a bachelor of science degree in civil engineering. In August 1939, he enlisted in the U.S. Army Air Corps as a flying cadet. He was commissioned as a second lieutenant in June 1941. Lt Col Chase Nielsen died at his home in Brigham City, Utah, March 23, 2007 at the age of 90.