The 1997–98 Australian Baseball League season was the 9th season of the original Australian Baseball League, contested between eight teams representing state and regional capitals: Adelaide Giants, Brisbane Bandits, Gold Coast Cougars, Hunter Eagles, Melbourne Monarchs, Melbourne Reds, Perth Heat and Sydney Storm.
The Melbourne Reds became the first three-time champions defeating the Gold Coast Cougars 2 games to 0 in the Championship series, in front of a small home crowd of 600 at the Melbourne Ballpark.
Each of the 8 teams from the previous season returned, however the Sydney Blues changed their name to the Sydney Storm after legal action taken by Cricket NSW during the offseason.
During the regular season each team made use of an active roster of 22–24 men, with a maximum of 4 import players.
In previous years the post season was played as home and away best of 3 games, with the two winner of each series meeting for a best of 5 series{fact}, in 1997–98 this was changed to a round robin play-off format with each team playing 3 games, 1 against each of the other 3 qualified teams, with the two highest places teams playing off in the Championship Series.