Jagiellonia Białystok II

Jagiellonia Białystok II is a Polish football team, which serves as the reserve side of Jagiellonia Białystok. They compete in the III liga, the fourth division of Polish football, after winning promotion in 2020.

They achieved notable success by winning the Białystok Polish Cup in the 1980–81, 1983–84, 1987–88, 1989–90, and 1990–91 seasons, which qualified them to compete at the central level of the competition in the subsequent seasons. Additionally, the reserves participated in the Polish Cup during the 2004–05, 2005–06 and 2023–24 seasons.