In Major League Baseball (MLB), as of the 2025 season, there are six Wild Card teams in total —three from the American League and three from the National League. Each league's playoff field consists of three division winners and three Wild Card teams, making a total of 12 teams advancing to the postseason. The seeding format is as follows in each league:

• Seeds 1 to 3: The three division winners, seeded by best record.
• Seeds 4 to 6: The three Wild Card teams, seeded by their regular-season records.

The Wild Card round is a best-of-three series where the Wild Card teams face the lowest-seeded division winner, with winners advancing to the Division Series. So, there are 3 Wild Card teams per league, totaling 6 Wild Card teams in MLB playoffs for 2025.