Current season, competition or edition: 2024 Frontier League season | |
 | |
| Sport | Baseball |
|---|---|
| Founded | 1993 |
| Commissioner | Steve Tahsler |
| No. of teams | 16 |
| Country |
|
| Most recent champion(s) | Québec Capitales (2023) |
| Most titles | Schaumburg Boomers (4) |
The Frontier League (FL; French: Ligue Frontière, LF) is a professional baseball league in North America comprising 16 teams; 13 in the United States and 3 in Canada. The FL is one of the seven independent baseball leagues across North America, and is one of the four leagues considered as an MLB Partner League. Despite being outside of the Minor League Baseball system, the level of play is comparable to the High-A level. The league is headquartered in Sauget, Illinois.
The league is contested by a total of sixteen teams, who are evenly divided into two divisions. After playing a regular season of matches against intra- and inter-division opponents, the best three teams in each conference face off in a postseason tournament that determines the champion.
23 distinct franchises had competed in the league. Its largest period of growth followed in 2020–21, when six teams from the ceased Can-Am and New York–Penn leagues joined alongside an expansion franchise. The Evansville Otters, the only one of the original eight franchises still playing today, is the longest tenured team in the league, while the Schaumburg Boomers have won the most championships.