Johan Støa (June 13, 1900 – October 29, 1991) was a Norwegian multi-sportsman. He competed as athlete (marathon runner), cross country skier, ski jumper, cyclist, swimmer, footballer, and boxer.
He was born in Råstad and died in Drammen.
In February 1928 he finished eighth in the 50 kilometre cross-country skiing event at the Winter Olympics at St. Moritz.
Then in August 1928 he finished 36th in the Olympic marathon at the Summer Olympics at Amsterdam.