1983–84 I-Divisioona season

The 1983–84 I-Divisioona season was the tenth season of the I-Divisioona, the second level of Finnish ice hockey. 10 teams participated in the league, and Lukko Rauma won the championship. Lukko Rauma and JYP Jyväskylä qualified for the promotion/relegation round of the SM-liiga.