Major League Indoor Soccer
| Founded | August 2022 |
|---|---|
| Country | United States |
| Other club from | Canada |
| Conferences | North, South |
| Number of clubs | 13+ (men's, as of 2025–26; expansions ongoing) |
| Website | www |
Major League Indoor Soccer (MLIS) is an indoor soccer league that began play in 2022 and based in the United States.
On August 18, 2022, Chicago (Mustangs), Cleveland (Crunch) and Grand Rapids (Rapid City FC) were announced as charter teams.
On March 12, 2024, the league announced a partner Women’s Major League Indoor Soccer (WMLIS) to begin play in 2024–25 season.
On March 29, 2024, the league announced a merger with the National Indoor Soccer League, keeping the Major League Indoor Soccer name.
The league has continued to expand, including into the South with teams like Atlético Orlando FC and additions such as Dallas CD La Cuadra, Boulder United FC Halo, Las Vegas Turf Monsters, and Salt Lake City Uprising for the 2025–26 season.