John Clifford Bird (born April 11, 1955) is a Canadian engineer, scientist, and journalist.
Bird’s research has included laser physics, atmospheric physics, and materials in microgravity.
He broke the world altitude record for hang gliding by launching from a helium balloon at 35,000 ft., and spent a year at the Amundsen-Scott South Pole station, which was documented in his book One Day, One Night: Portraits of the South Pole.