Jouko Hassi (born November 19, 1959, in Rantsila) is a Finnish former sprinter. His club team was Oulun Pyrintö.
He competed in 100 metres and 4 x 100 metres relay at the 1983 World Championships, but was eliminated in the heats on both occasions. http://www.iaaf.org/WCH05/history/Year=1983/EventCode=3/gender=M/discipline=100/combCode=hash/roundCode=h/index.html http://www.iaaf.org/WCH05/history/Year=1983/EventCode=3/gender=M/discipline=4X1/combCode=hash/roundCode=h/index.html