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 having won promotion in 2020.

Jagiellonia II was the winner of the Białystok's Polish Cup in the 1980–81, 1983–84, 1987–88, 1989–90 and 1990–91 seasons. This gave them the right to participate in the cup at the central level next season. Additionally, Jagiellonia's reserves played in the Polish Cup in seasons 2004–05 and 2005–06.