The 1948 season of the All-American Girls Baseball League was the sixth season of the league.
- Italics indicates half champion, Bold indicates the sectional champion, Bold+Italics indicates the Shaughnessy Series champion
- Bold indicates league record
The league's sixth All-Star Game was played on at . by a score of .
The playoffs featured the top four teams from each of the league's Eastern and Westernsections. The teams competed in a best-of-five intra-sectional first round, with the first place team faced off against the third place team and the second place team played against the fourth place team. The winners then advanced to the best-of-five sectional finals. The sectional champions then met in the best-of-seven Shaughnessy Series.
The winner of the league's Player of the Year Award, was Audrey Wagner, an outfielder with the Kenosha Comets. The award was voted upon by the league's managers.
The following players were named to the league's all-star team, as voted upon by the league's managers.