IV liga Masovia
| Organising body | Masovian Football Association |
|---|---|
| Founded | 2000 |
| Country | Poland |
| Number of clubs | 18 |
| Level on pyramid | 5 |
| Promotion to | III liga, group II |
| Relegation to | V liga Masovia |
| Current champions | KS CK Troszyn (1st title) (2024–25) |
| Sponsor(s) | Syty Król |
IV liga Masovia (grupa mazowiecka), also known as Syty Król IV liga mazowiecka for sponsorship reasons, is one of the groups of IV liga, the fifth level of Polish football league system.
The league was created in the 2000–01 season, after a new administrative division of Poland was implemented. Until the end of the 2007–08 season, IV liga was the fourth tier of league system, but this was changed with the formation of the Ekstraklasa as the top level league in Poland.
The clubs from Masovian Voivodeship compete in the group. The winner is promoted to III liga, group I. The bottom teams are relegated to the groups of Masovian group of the V liga.