Korisliiga is the top-tier professional basketball league in Finland, comprising the top-twelve teams of the country. Pantterit hold the record for the most league titles won, with fourteen. Salon Vilpas are the reigning Finnish Champions (SM) after winning the playoff finals versus Joensuun Kataja in 2026.

The league was founded by Basketball Finland in 1939 as Koripallon SM-sarja (lit. 'Basketball Finnish Championship' or 'Basketball Finnish Championship series'). It was renamed SM-koris ('Finnish Champion[ship] Basket') in 1999 and was known as Sparliiga during the 2004–05 season due to a sponsorship agreement with Spar. The current league name, Korisliiga ('Basket League'), has been used since 2005.

In its current format, each team plays all other teams two times in the regular season, once at home and once away, for a total of 22 regular season games. The top six teams advances continues to upper stage and the bottom six teams plays lower stage after 22 games, 5 games at home and 5 games at away versus all other teams in stage. The best two teams from lower group joins to playoffs with upper group teams.

Playoffs are played best of seven format, except the quarter-finals which are played best of 5 format.

Teams shown in italics are no longer in existence.

Updated after the 2021–22 season.

The following table lists the all-time cumulative record holder in each category, inclusive of regular season and playoff games.

The following table lists the single-season record holder in each category, only regular season statistics are included.