1988 Eastern League season

The 1988 Eastern League season began on approximately April 1 and the regular season ended on approximately September 1.

The Albany/Colonie Yankees defeated the Vermont Mariners three games to one to win the Eastern League Championship Series.

Standings
Notes:
 * Green shade indicates that team advanced to the playoffs
 * Bold indicates that team advanced to ELCS
 * Italics indicates that team won ELCS

Semi-finals Series
Albany/Colonie Yankees defeated Glens Falls Tigers 3 games to 1.

Vermont Mariners defeated Pittsfield Cubs 3 games to 1.

Championship Series
Albany/Colonie Yankees defeated Vermont Mariners 3 games to 1.