Naisten Mestis
| Formerly | Naisten I-divisioona |
|---|---|
| Sport | Ice hockey |
| Founded | 1985 |
| Founder | Finnish Ice Hockey Association |
| First season | as Naisten I-divisoona, 1985–86 as Naisten Mestis, 2012–13 |
| Administrator | Jesse Nuutinen |
| No. of teams | 8 |
| Country | Finland |
| Most recent champion(s) | Lukko/PaRa (2024–25) |
| Broadcaster(s) | Leijonat.tv |
| Promotion to | Auroraliiga |
| Relegation to | Naisten Suomi-sarja |
Naisten Mestis (lit. 'Women's Championship Series'; from Mestaruussarja, 'Championship series') is the second-highest women's national ice hockey league in Finland. Founded as the Naisten I-divisioona (lit. 'Women's First Division') in 1985 by the Finnish Ice Hockey Association, when the number of teams playing in the top-tier national league was limited, the league was renamed Naisten Mestis prior to the 2012–13 season.