2023–24 Mestis season

The 2023–24 Mestis season was the 24th season of Mestis, the second level of ice hockey in Finland. 13 teams participated in the league. This season marked the return of Jokerit to Finnish hockey after 10 years in the KHL.

Clubs
Updated 25 July 2023.

Team changes
The following team changes have happened for the 2023–24 season:

To Mestis
Promoted from Suomi-sarja
 * None

Relegated from Liiga
 * None as Liiga is closed

Other
 * Jokerit from the KHL

From Mestis
Promoted to Liiga
 * None as Liiga is closed

Relegated to Suomi-sarja
 * None

Other
 * HK Zemgale/LLU did not receive a license
 * Peliitat went bankrupt an thus did not receive a license

Regular season
The regular season consists of 48 matches. Rules for classification: 1) Total points; 2) Goal difference; 3) Goals scored; 4) Head-to-head points; 5) Penalty minutes.

Playoffs
Playoffs are being played in four stages. Wild-card round is a best-of-3 series, with the quarter-finals, the semifinals and the final being best-of-7 series. The teams are reseeded after the first two stages, so that the best team by regular season performance to make the quarter-finals and the semifinals faces the worst team in the corresponding stage.

Promotion
As the champion of Mestis in season 2022-23, Liiga decided to promote Kiekko-Espoo for the Liiga Season 2024-25.

Relegation
In the first round of relegation playoffs the 12th and 13th seated teams will play against each other. The loser will be relegated to the Suomi-sarja for next season.

In the second round of relegation playoffs, the winner of the first round will play against the champion of Suomi-sarja. The winner of this round will play next season in Mestis and the loser will be in Suomi-sarja.

Both 1st and 2nd rounds are played as a best-of-7 series.