Elliot McKay See, Jr. (July 23, 1927 February 28, 1966), (Cmdr, USNR), was an American engineer, naval aviator, test pilot, and NASA astronaut, selected in the second group of astronauts. He died in 1966 in a NASA trainer jet crash in St. Louis enroute to training for what would have been his first space flight, Gemini 9.